Home / 5,915.83-8,163.85-3,398.43

Finding the Fourth Proportional to 5,915.83, 8,163.85 and 3,398.43

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Solution

The fourth proportional to 5,915.83, 8,163.85 and 3,398.43 is: 4,689.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.83 : 8,163.85 = 3,398.43 : x
  2. Step 2: Convert to fraction form
    5,915.83/8,163.85 = 3,398.43/x
  3. Step 3: Cross multiply
    5,915.83x = 8,163.85 × 3,398.43
  4. Step 4: Simplify right side
    5,915.83x = 27,744,231.94
  5. Step 5: Solve for x
    x = 27,744,231.94/5,915.83
  6. Step 6: Final answer
    x = 4,689.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.