Home / 3,619.29-5,428.59-2,569.59

Finding the Fourth Proportional to 3,619.29, 5,428.59 and 2,569.59

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Solution

The fourth proportional to 3,619.29, 5,428.59 and 2,569.59 is: 3,854.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.29 : 5,428.59 = 2,569.59 : x
  2. Step 2: Convert to fraction form
    3,619.29/5,428.59 = 2,569.59/x
  3. Step 3: Cross multiply
    3,619.29x = 5,428.59 × 2,569.59
  4. Step 4: Simplify right side
    3,619.29x = 13,949,250.58
  5. Step 5: Solve for x
    x = 13,949,250.58/3,619.29
  6. Step 6: Final answer
    x = 3,854.14

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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.