Home / 1,439.04-2,159.17-708.62

Finding the Fourth Proportional to 1,439.04, 2,159.17 and 708.62

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Solution

The fourth proportional to 1,439.04, 2,159.17 and 708.62 is: 1,063.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439.04 : 2,159.17 = 708.62 : x
  2. Step 2: Convert to fraction form
    1,439.04/2,159.17 = 708.62/x
  3. Step 3: Cross multiply
    1,439.04x = 2,159.17 × 708.62
  4. Step 4: Simplify right side
    1,439.04x = 1,530,034.67
  5. Step 5: Solve for x
    x = 1,530,034.67/1,439.04
  6. Step 6: Final answer
    x = 1,063.23

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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.