Home / 5,781.38-8,672.47-2,318.63

Finding the Fourth Proportional to 5,781.38, 8,672.47 and 2,318.63

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Solution

The fourth proportional to 5,781.38, 8,672.47 and 2,318.63 is: 3,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,781.38 : 8,672.47 = 2,318.63 : x
  2. Step 2: Convert to fraction form
    5,781.38/8,672.47 = 2,318.63/x
  3. Step 3: Cross multiply
    5,781.38x = 8,672.47 × 2,318.63
  4. Step 4: Simplify right side
    5,781.38x = 20,108,199.96
  5. Step 5: Solve for x
    x = 20,108,199.96/5,781.38
  6. Step 6: Final answer
    x = 3,478.10

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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.