Home / 3,388.92-5,069.81-2,931.62

Finding the Fourth Proportional to 3,388.92, 5,069.81 and 2,931.62

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Solution

The fourth proportional to 3,388.92, 5,069.81 and 2,931.62 is: 4,385.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.92 : 5,069.81 = 2,931.62 : x
  2. Step 2: Convert to fraction form
    3,388.92/5,069.81 = 2,931.62/x
  3. Step 3: Cross multiply
    3,388.92x = 5,069.81 × 2,931.62
  4. Step 4: Simplify right side
    3,388.92x = 14,862,716.39
  5. Step 5: Solve for x
    x = 14,862,716.39/3,388.92
  6. Step 6: Final answer
    x = 4,385.68

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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.