Home / 1,454.06-2,180.57-631.91

Finding the Fourth Proportional to 1,454.06, 2,180.57 and 631.91

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Solution

The fourth proportional to 1,454.06, 2,180.57 and 631.91 is: 947.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454.06 : 2,180.57 = 631.91 : x
  2. Step 2: Convert to fraction form
    1,454.06/2,180.57 = 631.91/x
  3. Step 3: Cross multiply
    1,454.06x = 2,180.57 × 631.91
  4. Step 4: Simplify right side
    1,454.06x = 1,377,909.93
  5. Step 5: Solve for x
    x = 1,377,909.93/1,454.06
  6. Step 6: Final answer
    x = 947.63

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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.