Home / 6,691.17-9,233.40-3,929.34

Finding the Fourth Proportional to 6,691.17, 9,233.40 and 3,929.34

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Solution

The fourth proportional to 6,691.17, 9,233.40 and 3,929.34 is: 5,422.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,691.17 : 9,233.40 = 3,929.34 : x
  2. Step 2: Convert to fraction form
    6,691.17/9,233.40 = 3,929.34/x
  3. Step 3: Cross multiply
    6,691.17x = 9,233.40 × 3,929.34
  4. Step 4: Simplify right side
    6,691.17x = 36,281,167.96
  5. Step 5: Solve for x
    x = 36,281,167.96/6,691.17
  6. Step 6: Final answer
    x = 5,422.25

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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.