Home / 5,142.17-7,713.90-1,631.23

Finding the Fourth Proportional to 5,142.17, 7,713.90 and 1,631.23

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Solution

The fourth proportional to 5,142.17, 7,713.90 and 1,631.23 is: 2,447.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.17 : 7,713.90 = 1,631.23 : x
  2. Step 2: Convert to fraction form
    5,142.17/7,713.90 = 1,631.23/x
  3. Step 3: Cross multiply
    5,142.17x = 7,713.90 × 1,631.23
  4. Step 4: Simplify right side
    5,142.17x = 12,583,125.81
  5. Step 5: Solve for x
    x = 12,583,125.81/5,142.17
  6. Step 6: Final answer
    x = 2,447.04

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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.