Home / 1,729.19-2,385.46-1,169.85

Finding the Fourth Proportional to 1,729.19, 2,385.46 and 1,169.85

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Solution

The fourth proportional to 1,729.19, 2,385.46 and 1,169.85 is: 1,613.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.19 : 2,385.46 = 1,169.85 : x
  2. Step 2: Convert to fraction form
    1,729.19/2,385.46 = 1,169.85/x
  3. Step 3: Cross multiply
    1,729.19x = 2,385.46 × 1,169.85
  4. Step 4: Simplify right side
    1,729.19x = 2,790,630.38
  5. Step 5: Solve for x
    x = 2,790,630.38/1,729.19
  6. Step 6: Final answer
    x = 1,613.84

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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.