Home / 2,909.29-4,013.40-1,729.53

Finding the Fourth Proportional to 2,909.29, 4,013.40 and 1,729.53

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Solution

The fourth proportional to 2,909.29, 4,013.40 and 1,729.53 is: 2,385.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.29 : 4,013.40 = 1,729.53 : x
  2. Step 2: Convert to fraction form
    2,909.29/4,013.40 = 1,729.53/x
  3. Step 3: Cross multiply
    2,909.29x = 4,013.40 × 1,729.53
  4. Step 4: Simplify right side
    2,909.29x = 6,941,295.70
  5. Step 5: Solve for x
    x = 6,941,295.70/2,909.29
  6. Step 6: Final answer
    x = 2,385.91

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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.