Home / 2,148.35-2,965.23-1,251.90

Finding the Fourth Proportional to 2,148.35, 2,965.23 and 1,251.90

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Solution

The fourth proportional to 2,148.35, 2,965.23 and 1,251.90 is: 1,727.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.35 : 2,965.23 = 1,251.90 : x
  2. Step 2: Convert to fraction form
    2,148.35/2,965.23 = 1,251.90/x
  3. Step 3: Cross multiply
    2,148.35x = 2,965.23 × 1,251.90
  4. Step 4: Simplify right side
    2,148.35x = 3,712,171.44
  5. Step 5: Solve for x
    x = 3,712,171.44/2,148.35
  6. Step 6: Final answer
    x = 1,727.92

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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.