Home / 3,154.28-4,352.81-1,976.00

Finding the Fourth Proportional to 3,154.28, 4,352.81 and 1,976.00

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Solution

The fourth proportional to 3,154.28, 4,352.81 and 1,976.00 is: 2,726.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.28 : 4,352.81 = 1,976.00 : x
  2. Step 2: Convert to fraction form
    3,154.28/4,352.81 = 1,976.00/x
  3. Step 3: Cross multiply
    3,154.28x = 4,352.81 × 1,976.00
  4. Step 4: Simplify right side
    3,154.28x = 8,601,120.92
  5. Step 5: Solve for x
    x = 8,601,120.92/3,154.28
  6. Step 6: Final answer
    x = 2,726.81

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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.