Home / 5,146.56-7,102.38-3,155.97

Finding the Fourth Proportional to 5,146.56, 7,102.38 and 3,155.97

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Solution

The fourth proportional to 5,146.56, 7,102.38 and 3,155.97 is: 4,355.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.56 : 7,102.38 = 3,155.97 : x
  2. Step 2: Convert to fraction form
    5,146.56/7,102.38 = 3,155.97/x
  3. Step 3: Cross multiply
    5,146.56x = 7,102.38 × 3,155.97
  4. Step 4: Simplify right side
    5,146.56x = 22,414,898.21
  5. Step 5: Solve for x
    x = 22,414,898.21/5,146.56
  6. Step 6: Final answer
    x = 4,355.32

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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.