Home / 5,513.38-7,609.79-3,156.89

Finding the Fourth Proportional to 5,513.38, 7,609.79 and 3,156.89

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Solution

The fourth proportional to 5,513.38, 7,609.79 and 3,156.89 is: 4,357.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,513.38 : 7,609.79 = 3,156.89 : x
  2. Step 2: Convert to fraction form
    5,513.38/7,609.79 = 3,156.89/x
  3. Step 3: Cross multiply
    5,513.38x = 7,609.79 × 3,156.89
  4. Step 4: Simplify right side
    5,513.38x = 24,023,239.80
  5. Step 5: Solve for x
    x = 24,023,239.80/5,513.38
  6. Step 6: Final answer
    x = 4,357.26

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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.