Home / 5,005.71-7,507.86-3,151.17

Finding the Fourth Proportional to 5,005.71, 7,507.86 and 3,151.17

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Solution

The fourth proportional to 5,005.71, 7,507.86 and 3,151.17 is: 4,726.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.71 : 7,507.86 = 3,151.17 : x
  2. Step 2: Convert to fraction form
    5,005.71/7,507.86 = 3,151.17/x
  3. Step 3: Cross multiply
    5,005.71x = 7,507.86 × 3,151.17
  4. Step 4: Simplify right side
    5,005.71x = 23,658,543.20
  5. Step 5: Solve for x
    x = 23,658,543.20/5,005.71
  6. Step 6: Final answer
    x = 4,726.31

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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.