Home / 3,972.91-5,484.42-2,716

Finding the Fourth Proportional to 3,972.91, 5,484.42 and 2,716

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Solution

The fourth proportional to 3,972.91, 5,484.42 and 2,716 is: 3,749.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.91 : 5,484.42 = 2,716 : x
  2. Step 2: Convert to fraction form
    3,972.91/5,484.42 = 2,716/x
  3. Step 3: Cross multiply
    3,972.91x = 5,484.42 × 2,716
  4. Step 4: Simplify right side
    3,972.91x = 14,895,684.72
  5. Step 5: Solve for x
    x = 14,895,684.72/3,972.91
  6. Step 6: Final answer
    x = 3,749.31

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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.