Home / 1,454.14-2,179.39-631.59

Finding the Fourth Proportional to 1,454.14, 2,179.39 and 631.59

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Solution

The fourth proportional to 1,454.14, 2,179.39 and 631.59 is: 946.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454.14 : 2,179.39 = 631.59 : x
  2. Step 2: Convert to fraction form
    1,454.14/2,179.39 = 631.59/x
  3. Step 3: Cross multiply
    1,454.14x = 2,179.39 × 631.59
  4. Step 4: Simplify right side
    1,454.14x = 1,376,480.93
  5. Step 5: Solve for x
    x = 1,376,480.93/1,454.14
  6. Step 6: Final answer
    x = 946.59

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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.