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Finding the Fourth Proportional to 5,691.22, 8,521.59 and 5,363.68

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Solution

The fourth proportional to 5,691.22, 8,521.59 and 5,363.68 is: 8,031.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.22 : 8,521.59 = 5,363.68 : x
  2. Step 2: Convert to fraction form
    5,691.22/8,521.59 = 5,363.68/x
  3. Step 3: Cross multiply
    5,691.22x = 8,521.59 × 5,363.68
  4. Step 4: Simplify right side
    5,691.22x = 45,707,081.85
  5. Step 5: Solve for x
    x = 45,707,081.85/5,691.22
  6. Step 6: Final answer
    x = 8,031.16

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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.