Home / 5,612.27-8,412.90-4,781.21

Finding the Fourth Proportional to 5,612.27, 8,412.90 and 4,781.21

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Solution

The fourth proportional to 5,612.27, 8,412.90 and 4,781.21 is: 7,167.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.27 : 8,412.90 = 4,781.21 : x
  2. Step 2: Convert to fraction form
    5,612.27/8,412.90 = 4,781.21/x
  3. Step 3: Cross multiply
    5,612.27x = 8,412.90 × 4,781.21
  4. Step 4: Simplify right side
    5,612.27x = 40,223,781.61
  5. Step 5: Solve for x
    x = 40,223,781.61/5,612.27
  6. Step 6: Final answer
    x = 7,167.12

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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.