Home / 1,439.73-2,159.55-1,007.17

Finding the Fourth Proportional to 1,439.73, 2,159.55 and 1,007.17

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Solution

The fourth proportional to 1,439.73, 2,159.55 and 1,007.17 is: 1,510.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439.73 : 2,159.55 = 1,007.17 : x
  2. Step 2: Convert to fraction form
    1,439.73/2,159.55 = 1,007.17/x
  3. Step 3: Cross multiply
    1,439.73x = 2,159.55 × 1,007.17
  4. Step 4: Simplify right side
    1,439.73x = 2,175,033.97
  5. Step 5: Solve for x
    x = 2,175,033.97/1,439.73
  6. Step 6: Final answer
    x = 1,510.72

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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.