Home / 2,149.13-2,965.79-1,265.47

Finding the Fourth Proportional to 2,149.13, 2,965.79 and 1,265.47

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Solution

The fourth proportional to 2,149.13, 2,965.79 and 1,265.47 is: 1,746.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.13 : 2,965.79 = 1,265.47 : x
  2. Step 2: Convert to fraction form
    2,149.13/2,965.79 = 1,265.47/x
  3. Step 3: Cross multiply
    2,149.13x = 2,965.79 × 1,265.47
  4. Step 4: Simplify right side
    2,149.13x = 3,753,125.14
  5. Step 5: Solve for x
    x = 3,753,125.14/2,149.13
  6. Step 6: Final answer
    x = 1,746.35

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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.