Home / 2,687.41-3,708.38-1,508.25

Finding the Fourth Proportional to 2,687.41, 3,708.38 and 1,508.25

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Solution

The fourth proportional to 2,687.41, 3,708.38 and 1,508.25 is: 2,081.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.41 : 3,708.38 = 1,508.25 : x
  2. Step 2: Convert to fraction form
    2,687.41/3,708.38 = 1,508.25/x
  3. Step 3: Cross multiply
    2,687.41x = 3,708.38 × 1,508.25
  4. Step 4: Simplify right side
    2,687.41x = 5,593,181.81
  5. Step 5: Solve for x
    x = 5,593,181.81/2,687.41
  6. Step 6: Final answer
    x = 2,081.25

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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.