Home / 5,417.38-8,119.92-2,489.63

Finding the Fourth Proportional to 5,417.38, 8,119.92 and 2,489.63

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Solution

The fourth proportional to 5,417.38, 8,119.92 and 2,489.63 is: 3,731.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.38 : 8,119.92 = 2,489.63 : x
  2. Step 2: Convert to fraction form
    5,417.38/8,119.92 = 2,489.63/x
  3. Step 3: Cross multiply
    5,417.38x = 8,119.92 × 2,489.63
  4. Step 4: Simplify right side
    5,417.38x = 20,215,596.43
  5. Step 5: Solve for x
    x = 20,215,596.43/5,417.38
  6. Step 6: Final answer
    x = 3,731.62

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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.