Home / 5,116.90-7,691.55-4,728.10

Finding the Fourth Proportional to 5,116.90, 7,691.55 and 4,728.10

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Solution

The fourth proportional to 5,116.90, 7,691.55 and 4,728.10 is: 7,107.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.90 : 7,691.55 = 4,728.10 : x
  2. Step 2: Convert to fraction form
    5,116.90/7,691.55 = 4,728.10/x
  3. Step 3: Cross multiply
    5,116.90x = 7,691.55 × 4,728.10
  4. Step 4: Simplify right side
    5,116.90x = 36,366,417.56
  5. Step 5: Solve for x
    x = 36,366,417.56/5,116.90
  6. Step 6: Final answer
    x = 7,107.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.