Home / 2,689.32-3,712.38-2,314.83

Finding the Fourth Proportional to 2,689.32, 3,712.38 and 2,314.83

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Solution

The fourth proportional to 2,689.32, 3,712.38 and 2,314.83 is: 3,195.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.32 : 3,712.38 = 2,314.83 : x
  2. Step 2: Convert to fraction form
    2,689.32/3,712.38 = 2,314.83/x
  3. Step 3: Cross multiply
    2,689.32x = 3,712.38 × 2,314.83
  4. Step 4: Simplify right side
    2,689.32x = 8,593,528.60
  5. Step 5: Solve for x
    x = 8,593,528.60/2,689.32
  6. Step 6: Final answer
    x = 3,195.43

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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.