Home / 5,531.68-8,286.16-2,929.12

Finding the Fourth Proportional to 5,531.68, 8,286.16 and 2,929.12

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Solution

The fourth proportional to 5,531.68, 8,286.16 and 2,929.12 is: 4,387.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.68 : 8,286.16 = 2,929.12 : x
  2. Step 2: Convert to fraction form
    5,531.68/8,286.16 = 2,929.12/x
  3. Step 3: Cross multiply
    5,531.68x = 8,286.16 × 2,929.12
  4. Step 4: Simplify right side
    5,531.68x = 24,271,156.98
  5. Step 5: Solve for x
    x = 24,271,156.98/5,531.68
  6. Step 6: Final answer
    x = 4,387.66

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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.