Home / 5,090.09-7,023.94-3,100.32

Finding the Fourth Proportional to 5,090.09, 7,023.94 and 3,100.32

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Solution

The fourth proportional to 5,090.09, 7,023.94 and 3,100.32 is: 4,278.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.09 : 7,023.94 = 3,100.32 : x
  2. Step 2: Convert to fraction form
    5,090.09/7,023.94 = 3,100.32/x
  3. Step 3: Cross multiply
    5,090.09x = 7,023.94 × 3,100.32
  4. Step 4: Simplify right side
    5,090.09x = 21,776,453.91
  5. Step 5: Solve for x
    x = 21,776,453.91/5,090.09
  6. Step 6: Final answer
    x = 4,278.21

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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.