Home / 1,255.11-1,873.20-1,150.54

Finding the Fourth Proportional to 1,255.11, 1,873.20 and 1,150.54

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Solution

The fourth proportional to 1,255.11, 1,873.20 and 1,150.54 is: 1,717.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255.11 : 1,873.20 = 1,150.54 : x
  2. Step 2: Convert to fraction form
    1,255.11/1,873.20 = 1,150.54/x
  3. Step 3: Cross multiply
    1,255.11x = 1,873.20 × 1,150.54
  4. Step 4: Simplify right side
    1,255.11x = 2,155,191.53
  5. Step 5: Solve for x
    x = 2,155,191.53/1,255.11
  6. Step 6: Final answer
    x = 1,717.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.