Home / 2,847.77-4,272.27-1,387.74

Finding the Fourth Proportional to 2,847.77, 4,272.27 and 1,387.74

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Solution

The fourth proportional to 2,847.77, 4,272.27 and 1,387.74 is: 2,081.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.77 : 4,272.27 = 1,387.74 : x
  2. Step 2: Convert to fraction form
    2,847.77/4,272.27 = 1,387.74/x
  3. Step 3: Cross multiply
    2,847.77x = 4,272.27 × 1,387.74
  4. Step 4: Simplify right side
    2,847.77x = 5,928,799.97
  5. Step 5: Solve for x
    x = 5,928,799.97/2,847.77
  6. Step 6: Final answer
    x = 2,081.91

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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.