Home / 5,677.08-8,515.68-1,781.56

Finding the Fourth Proportional to 5,677.08, 8,515.68 and 1,781.56

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Solution

The fourth proportional to 5,677.08, 8,515.68 and 1,781.56 is: 2,672.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,677.08 : 8,515.68 = 1,781.56 : x
  2. Step 2: Convert to fraction form
    5,677.08/8,515.68 = 1,781.56/x
  3. Step 3: Cross multiply
    5,677.08x = 8,515.68 × 1,781.56
  4. Step 4: Simplify right side
    5,677.08x = 15,171,194.86
  5. Step 5: Solve for x
    x = 15,171,194.86/5,677.08
  6. Step 6: Final answer
    x = 2,672.36

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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.