Home / 1,627.24-2,438.07-1,282.78

Finding the Fourth Proportional to 1,627.24, 2,438.07 and 1,282.78

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Solution

The fourth proportional to 1,627.24, 2,438.07 and 1,282.78 is: 1,921.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.24 : 2,438.07 = 1,282.78 : x
  2. Step 2: Convert to fraction form
    1,627.24/2,438.07 = 1,282.78/x
  3. Step 3: Cross multiply
    1,627.24x = 2,438.07 × 1,282.78
  4. Step 4: Simplify right side
    1,627.24x = 3,127,507.43
  5. Step 5: Solve for x
    x = 3,127,507.43/1,627.24
  6. Step 6: Final answer
    x = 1,921.97

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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.