Home / 1,115.45-1,672.68-595.36

Finding the Fourth Proportional to 1,115.45, 1,672.68 and 595.36

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Solution

The fourth proportional to 1,115.45, 1,672.68 and 595.36 is: 892.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115.45 : 1,672.68 = 595.36 : x
  2. Step 2: Convert to fraction form
    1,115.45/1,672.68 = 595.36/x
  3. Step 3: Cross multiply
    1,115.45x = 1,672.68 × 595.36
  4. Step 4: Simplify right side
    1,115.45x = 995,846.76
  5. Step 5: Solve for x
    x = 995,846.76/1,115.45
  6. Step 6: Final answer
    x = 892.78

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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.