Home / 2,981.92-4,115.19-1,655.62

Finding the Fourth Proportional to 2,981.92, 4,115.19 and 1,655.62

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Solution

The fourth proportional to 2,981.92, 4,115.19 and 1,655.62 is: 2,284.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.92 : 4,115.19 = 1,655.62 : x
  2. Step 2: Convert to fraction form
    2,981.92/4,115.19 = 1,655.62/x
  3. Step 3: Cross multiply
    2,981.92x = 4,115.19 × 1,655.62
  4. Step 4: Simplify right side
    2,981.92x = 6,813,190.87
  5. Step 5: Solve for x
    x = 6,813,190.87/2,981.92
  6. Step 6: Final answer
    x = 2,284.83

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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.