Home / 1,524.11-2,103.26-861.08

Finding the Fourth Proportional to 1,524.11, 2,103.26 and 861.08

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Solution

The fourth proportional to 1,524.11, 2,103.26 and 861.08 is: 1,188.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,524.11 : 2,103.26 = 861.08 : x
  2. Step 2: Convert to fraction form
    1,524.11/2,103.26 = 861.08/x
  3. Step 3: Cross multiply
    1,524.11x = 2,103.26 × 861.08
  4. Step 4: Simplify right side
    1,524.11x = 1,811,060.30
  5. Step 5: Solve for x
    x = 1,811,060.30/1,524.11
  6. Step 6: Final answer
    x = 1,188.28

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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.