Home / 5,154.92-7,728.28-2,231.16

Finding the Fourth Proportional to 5,154.92, 7,728.28 and 2,231.16

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Solution

The fourth proportional to 5,154.92, 7,728.28 and 2,231.16 is: 3,344.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.92 : 7,728.28 = 2,231.16 : x
  2. Step 2: Convert to fraction form
    5,154.92/7,728.28 = 2,231.16/x
  3. Step 3: Cross multiply
    5,154.92x = 7,728.28 × 2,231.16
  4. Step 4: Simplify right side
    5,154.92x = 17,243,029.20
  5. Step 5: Solve for x
    x = 17,243,029.20/5,154.92
  6. Step 6: Final answer
    x = 3,344.97

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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.