Home / 2,909.13-4,013.19-1,729.37

Finding the Fourth Proportional to 2,909.13, 4,013.19 and 1,729.37

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Solution

The fourth proportional to 2,909.13, 4,013.19 and 1,729.37 is: 2,385.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.13 : 4,013.19 = 1,729.37 : x
  2. Step 2: Convert to fraction form
    2,909.13/4,013.19 = 1,729.37/x
  3. Step 3: Cross multiply
    2,909.13x = 4,013.19 × 1,729.37
  4. Step 4: Simplify right side
    2,909.13x = 6,940,270.32
  5. Step 5: Solve for x
    x = 6,940,270.32/2,909.13
  6. Step 6: Final answer
    x = 2,385.69

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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.