Home / 3,712.31-5,569.39-2,618.81

Finding the Fourth Proportional to 3,712.31, 5,569.39 and 2,618.81

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Solution

The fourth proportional to 3,712.31, 5,569.39 and 2,618.81 is: 3,928.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.31 : 5,569.39 = 2,618.81 : x
  2. Step 2: Convert to fraction form
    3,712.31/5,569.39 = 2,618.81/x
  3. Step 3: Cross multiply
    3,712.31x = 5,569.39 × 2,618.81
  4. Step 4: Simplify right side
    3,712.31x = 14,585,170.54
  5. Step 5: Solve for x
    x = 14,585,170.54/3,712.31
  6. Step 6: Final answer
    x = 3,928.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.