Home / 1,327.95-2,001.87-1,238.75

Finding the Fourth Proportional to 1,327.95, 2,001.87 and 1,238.75

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Solution

The fourth proportional to 1,327.95, 2,001.87 and 1,238.75 is: 1,867.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327.95 : 2,001.87 = 1,238.75 : x
  2. Step 2: Convert to fraction form
    1,327.95/2,001.87 = 1,238.75/x
  3. Step 3: Cross multiply
    1,327.95x = 2,001.87 × 1,238.75
  4. Step 4: Simplify right side
    1,327.95x = 2,479,821.47
  5. Step 5: Solve for x
    x = 2,479,821.47/1,327.95
  6. Step 6: Final answer
    x = 1,867.41

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.