Home / 1,195.46-1,780.85-1,159.18

Finding the Fourth Proportional to 1,195.46, 1,780.85 and 1,159.18

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Solution

The fourth proportional to 1,195.46, 1,780.85 and 1,159.18 is: 1,726.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195.46 : 1,780.85 = 1,159.18 : x
  2. Step 2: Convert to fraction form
    1,195.46/1,780.85 = 1,159.18/x
  3. Step 3: Cross multiply
    1,195.46x = 1,780.85 × 1,159.18
  4. Step 4: Simplify right side
    1,195.46x = 2,064,324.15
  5. Step 5: Solve for x
    x = 2,064,324.15/1,195.46
  6. Step 6: Final answer
    x = 1,726.81

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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.