Home / 7,538.19-10,402.74-4,180.77

Finding the Fourth Proportional to 7,538.19, 10,402.74 and 4,180.77

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Solution

The fourth proportional to 7,538.19, 10,402.74 and 4,180.77 is: 5,769.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.19 : 10,402.74 = 4,180.77 : x
  2. Step 2: Convert to fraction form
    7,538.19/10,402.74 = 4,180.77/x
  3. Step 3: Cross multiply
    7,538.19x = 10,402.74 × 4,180.77
  4. Step 4: Simplify right side
    7,538.19x = 43,491,463.31
  5. Step 5: Solve for x
    x = 43,491,463.31/7,538.19
  6. Step 6: Final answer
    x = 5,769.48

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Find fourth proportional to 3,769.10, 5,201.37 and 2,090.39
Half scale
Find fourth proportional to 15,076.38, 20,805.48 and 8,361.54
Double scale
Find fourth proportional to 7,539.19, 10,404.12 and 4,181.77
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.