Home / 7,538.85-10,402.96-4,181.60

Finding the Fourth Proportional to 7,538.85, 10,402.96 and 4,181.60

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Solution

The fourth proportional to 7,538.85, 10,402.96 and 4,181.60 is: 5,770.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.85 : 10,402.96 = 4,181.60 : x
  2. Step 2: Convert to fraction form
    7,538.85/10,402.96 = 4,181.60/x
  3. Step 3: Cross multiply
    7,538.85x = 10,402.96 × 4,181.60
  4. Step 4: Simplify right side
    7,538.85x = 43,501,017.54
  5. Step 5: Solve for x
    x = 43,501,017.54/7,538.85
  6. Step 6: Final answer
    x = 5,770.25

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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.