Home / 1,414.46-2,121.80-591.91

Finding the Fourth Proportional to 1,414.46, 2,121.80 and 591.91

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Solution

The fourth proportional to 1,414.46, 2,121.80 and 591.91 is: 887.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,414.46 : 2,121.80 = 591.91 : x
  2. Step 2: Convert to fraction form
    1,414.46/2,121.80 = 591.91/x
  3. Step 3: Cross multiply
    1,414.46x = 2,121.80 × 591.91
  4. Step 4: Simplify right side
    1,414.46x = 1,255,906.37
  5. Step 5: Solve for x
    x = 1,255,906.37/1,414.46
  6. Step 6: Final answer
    x = 887.90

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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.