Home / 6,454.20-9,681.30-3,862.20

Finding the Fourth Proportional to 6,454.20, 9,681.30 and 3,862.20

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Solution

The fourth proportional to 6,454.20, 9,681.30 and 3,862.20 is: 5,793.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,454.20 : 9,681.30 = 3,862.20 : x
  2. Step 2: Convert to fraction form
    6,454.20/9,681.30 = 3,862.20/x
  3. Step 3: Cross multiply
    6,454.20x = 9,681.30 × 3,862.20
  4. Step 4: Simplify right side
    6,454.20x = 37,391,116.86
  5. Step 5: Solve for x
    x = 37,391,116.86/6,454.20
  6. Step 6: Final answer
    x = 5,793.30

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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.