Home / 1,449.15-2,001.15-926.10

Finding the Fourth Proportional to 1,449.15, 2,001.15 and 926.10

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Solution

The fourth proportional to 1,449.15, 2,001.15 and 926.10 is: 1,278.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449.15 : 2,001.15 = 926.10 : x
  2. Step 2: Convert to fraction form
    1,449.15/2,001.15 = 926.10/x
  3. Step 3: Cross multiply
    1,449.15x = 2,001.15 × 926.10
  4. Step 4: Simplify right side
    1,449.15x = 1,853,265.02
  5. Step 5: Solve for x
    x = 1,853,265.02/1,449.15
  6. Step 6: Final answer
    x = 1,278.86

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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.