Home / 5,391.18-8,086.77-2,460.78

Finding the Fourth Proportional to 5,391.18, 8,086.77 and 2,460.78

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Solution

The fourth proportional to 5,391.18, 8,086.77 and 2,460.78 is: 3,691.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.18 : 8,086.77 = 2,460.78 : x
  2. Step 2: Convert to fraction form
    5,391.18/8,086.77 = 2,460.78/x
  3. Step 3: Cross multiply
    5,391.18x = 8,086.77 × 2,460.78
  4. Step 4: Simplify right side
    5,391.18x = 19,899,761.88
  5. Step 5: Solve for x
    x = 19,899,761.88/5,391.18
  6. Step 6: Final answer
    x = 3,691.17

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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.