Home / 2,687.20-3,708.24-1,508.32

Finding the Fourth Proportional to 2,687.20, 3,708.24 and 1,508.32

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Solution

The fourth proportional to 2,687.20, 3,708.24 and 1,508.32 is: 2,081.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.20 : 3,708.24 = 1,508.32 : x
  2. Step 2: Convert to fraction form
    2,687.20/3,708.24 = 1,508.32/x
  3. Step 3: Cross multiply
    2,687.20x = 3,708.24 × 1,508.32
  4. Step 4: Simplify right side
    2,687.20x = 5,593,212.56
  5. Step 5: Solve for x
    x = 5,593,212.56/2,687.20
  6. Step 6: Final answer
    x = 2,081.43

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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.