Home / 2,286.60-3,155.27-1,689.41

Finding the Fourth Proportional to 2,286.60, 3,155.27 and 1,689.41

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Solution

The fourth proportional to 2,286.60, 3,155.27 and 1,689.41 is: 2,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.60 : 3,155.27 = 1,689.41 : x
  2. Step 2: Convert to fraction form
    2,286.60/3,155.27 = 1,689.41/x
  3. Step 3: Cross multiply
    2,286.60x = 3,155.27 × 1,689.41
  4. Step 4: Simplify right side
    2,286.60x = 5,330,520.47
  5. Step 5: Solve for x
    x = 5,330,520.47/2,286.60
  6. Step 6: Final answer
    x = 2,331.20

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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.