Home / 5,613.55-8,420.30-4,382.00

Finding the Fourth Proportional to 5,613.55, 8,420.30 and 4,382.00

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Solution

The fourth proportional to 5,613.55, 8,420.30 and 4,382.00 is: 6,572.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.55 : 8,420.30 = 4,382.00 : x
  2. Step 2: Convert to fraction form
    5,613.55/8,420.30 = 4,382.00/x
  3. Step 3: Cross multiply
    5,613.55x = 8,420.30 × 4,382.00
  4. Step 4: Simplify right side
    5,613.55x = 36,897,763.25
  5. Step 5: Solve for x
    x = 36,897,763.25/5,613.55
  6. Step 6: Final answer
    x = 6,572.98

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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.