Home / 2,924.28-4,387.79-1,280.61

Finding the Fourth Proportional to 2,924.28, 4,387.79 and 1,280.61

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Solution

The fourth proportional to 2,924.28, 4,387.79 and 1,280.61 is: 1,921.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,924.28 : 4,387.79 = 1,280.61 : x
  2. Step 2: Convert to fraction form
    2,924.28/4,387.79 = 1,280.61/x
  3. Step 3: Cross multiply
    2,924.28x = 4,387.79 × 1,280.61
  4. Step 4: Simplify right side
    2,924.28x = 5,619,041.35
  5. Step 5: Solve for x
    x = 5,619,041.35/2,924.28
  6. Step 6: Final answer
    x = 1,921.51

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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.