Home / 1,524.38-2,103.64-825.75

Finding the Fourth Proportional to 1,524.38, 2,103.64 and 825.75

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Solution

The fourth proportional to 1,524.38, 2,103.64 and 825.75 is: 1,139.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,524.38 : 2,103.64 = 825.75 : x
  2. Step 2: Convert to fraction form
    1,524.38/2,103.64 = 825.75/x
  3. Step 3: Cross multiply
    1,524.38x = 2,103.64 × 825.75
  4. Step 4: Simplify right side
    1,524.38x = 1,737,078.67
  5. Step 5: Solve for x
    x = 1,737,078.67/1,524.38
  6. Step 6: Final answer
    x = 1,139.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.