Home / 5,488.64-8,221.20-4,387.04

Finding the Fourth Proportional to 5,488.64, 8,221.20 and 4,387.04

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Solution

The fourth proportional to 5,488.64, 8,221.20 and 4,387.04 is: 6,571.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488.64 : 8,221.20 = 4,387.04 : x
  2. Step 2: Convert to fraction form
    5,488.64/8,221.20 = 4,387.04/x
  3. Step 3: Cross multiply
    5,488.64x = 8,221.20 × 4,387.04
  4. Step 4: Simplify right side
    5,488.64x = 36,066,733.25
  5. Step 5: Solve for x
    x = 36,066,733.25/5,488.64
  6. Step 6: Final answer
    x = 6,571.16

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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.