Home / 2,687.13-3,708.41-1,508.20

Finding the Fourth Proportional to 2,687.13, 3,708.41 and 1,508.20

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Solution

The fourth proportional to 2,687.13, 3,708.41 and 1,508.20 is: 2,081.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.13 : 3,708.41 = 1,508.20 : x
  2. Step 2: Convert to fraction form
    2,687.13/3,708.41 = 1,508.20/x
  3. Step 3: Cross multiply
    2,687.13x = 3,708.41 × 1,508.20
  4. Step 4: Simplify right side
    2,687.13x = 5,593,032.25
  5. Step 5: Solve for x
    x = 5,593,032.25/2,687.13
  6. Step 6: Final answer
    x = 2,081.41

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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.