Home / 1,159.32-1,732.11-1,105.56

Finding the Fourth Proportional to 1,159.32, 1,732.11 and 1,105.56

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Solution

The fourth proportional to 1,159.32, 1,732.11 and 1,105.56 is: 1,651.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159.32 : 1,732.11 = 1,105.56 : x
  2. Step 2: Convert to fraction form
    1,159.32/1,732.11 = 1,105.56/x
  3. Step 3: Cross multiply
    1,159.32x = 1,732.11 × 1,105.56
  4. Step 4: Simplify right side
    1,159.32x = 1,914,951.53
  5. Step 5: Solve for x
    x = 1,914,951.53/1,159.32
  6. Step 6: Final answer
    x = 1,651.79

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1.5x scale

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.