Home / 3,939.17-5,438.30-2,614.68

Finding the Fourth Proportional to 3,939.17, 5,438.30 and 2,614.68

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Solution

The fourth proportional to 3,939.17, 5,438.30 and 2,614.68 is: 3,609.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.17 : 5,438.30 = 2,614.68 : x
  2. Step 2: Convert to fraction form
    3,939.17/5,438.30 = 2,614.68/x
  3. Step 3: Cross multiply
    3,939.17x = 5,438.30 × 2,614.68
  4. Step 4: Simplify right side
    3,939.17x = 14,219,401.17
  5. Step 5: Solve for x
    x = 14,219,401.17/3,939.17
  6. Step 6: Final answer
    x = 3,609.75

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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.