Home / 2,591.80-3,576.70-1,412.88

Finding the Fourth Proportional to 2,591.80, 3,576.70 and 1,412.88

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Solution

The fourth proportional to 2,591.80, 3,576.70 and 1,412.88 is: 1,949.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,591.80 : 3,576.70 = 1,412.88 : x
  2. Step 2: Convert to fraction form
    2,591.80/3,576.70 = 1,412.88/x
  3. Step 3: Cross multiply
    2,591.80x = 3,576.70 × 1,412.88
  4. Step 4: Simplify right side
    2,591.80x = 5,053,447.90
  5. Step 5: Solve for x
    x = 5,053,447.90/2,591.80
  6. Step 6: Final answer
    x = 1,949.78

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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.