Home / 2,458.14-3,687.21-814.25

Finding the Fourth Proportional to 2,458.14, 3,687.21 and 814.25

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Solution

The fourth proportional to 2,458.14, 3,687.21 and 814.25 is: 1,221.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,458.14 : 3,687.21 = 814.25 : x
  2. Step 2: Convert to fraction form
    2,458.14/3,687.21 = 814.25/x
  3. Step 3: Cross multiply
    2,458.14x = 3,687.21 × 814.25
  4. Step 4: Simplify right side
    2,458.14x = 3,002,310.74
  5. Step 5: Solve for x
    x = 3,002,310.74/2,458.14
  6. Step 6: Final answer
    x = 1,221.38

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1.5x scale

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.