Home / 1,440.52-2,161.17-516.18

Finding the Fourth Proportional to 1,440.52, 2,161.17 and 516.18

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Solution

The fourth proportional to 1,440.52, 2,161.17 and 516.18 is: 774.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.52 : 2,161.17 = 516.18 : x
  2. Step 2: Convert to fraction form
    1,440.52/2,161.17 = 516.18/x
  3. Step 3: Cross multiply
    1,440.52x = 2,161.17 × 516.18
  4. Step 4: Simplify right side
    1,440.52x = 1,115,552.73
  5. Step 5: Solve for x
    x = 1,115,552.73/1,440.52
  6. Step 6: Final answer
    x = 774.41

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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.