Home / 1,438.38-2,154.36-1,250.88

Finding the Fourth Proportional to 1,438.38, 2,154.36 and 1,250.88

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Solution

The fourth proportional to 1,438.38, 2,154.36 and 1,250.88 is: 1,873.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438.38 : 2,154.36 = 1,250.88 : x
  2. Step 2: Convert to fraction form
    1,438.38/2,154.36 = 1,250.88/x
  3. Step 3: Cross multiply
    1,438.38x = 2,154.36 × 1,250.88
  4. Step 4: Simplify right side
    1,438.38x = 2,694,845.84
  5. Step 5: Solve for x
    x = 2,694,845.84/1,438.38
  6. Step 6: Final answer
    x = 1,873.53

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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.