Home / 3,619.29-5,428.95-1,426.83

Finding the Fourth Proportional to 3,619.29, 5,428.95 and 1,426.83

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Solution

The fourth proportional to 3,619.29, 5,428.95 and 1,426.83 is: 2,140.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.29 : 5,428.95 = 1,426.83 : x
  2. Step 2: Convert to fraction form
    3,619.29/5,428.95 = 1,426.83/x
  3. Step 3: Cross multiply
    3,619.29x = 5,428.95 × 1,426.83
  4. Step 4: Simplify right side
    3,619.29x = 7,746,188.73
  5. Step 5: Solve for x
    x = 7,746,188.73/3,619.29
  6. Step 6: Final answer
    x = 2,140.25

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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.