Home / 1,258.16-1,887.41-527.57

Finding the Fourth Proportional to 1,258.16, 1,887.41 and 527.57

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Solution

The fourth proportional to 1,258.16, 1,887.41 and 527.57 is: 791.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258.16 : 1,887.41 = 527.57 : x
  2. Step 2: Convert to fraction form
    1,258.16/1,887.41 = 527.57/x
  3. Step 3: Cross multiply
    1,258.16x = 1,887.41 × 527.57
  4. Step 4: Simplify right side
    1,258.16x = 995,732.78
  5. Step 5: Solve for x
    x = 995,732.78/1,258.16
  6. Step 6: Final answer
    x = 791.42

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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.