Home / 5,613.35-8,421.84-2,691.88

Finding the Fourth Proportional to 5,613.35, 8,421.84 and 2,691.88

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Solution

The fourth proportional to 5,613.35, 8,421.84 and 2,691.88 is: 4,038.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.35 : 8,421.84 = 2,691.88 : x
  2. Step 2: Convert to fraction form
    5,613.35/8,421.84 = 2,691.88/x
  3. Step 3: Cross multiply
    5,613.35x = 8,421.84 × 2,691.88
  4. Step 4: Simplify right side
    5,613.35x = 22,670,561.60
  5. Step 5: Solve for x
    x = 22,670,561.60/5,613.35
  6. Step 6: Final answer
    x = 4,038.69

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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.