Home / 2,921.97-4,383.87-1,047.88

Finding the Fourth Proportional to 2,921.97, 4,383.87 and 1,047.88

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Solution

The fourth proportional to 2,921.97, 4,383.87 and 1,047.88 is: 1,572.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.97 : 4,383.87 = 1,047.88 : x
  2. Step 2: Convert to fraction form
    2,921.97/4,383.87 = 1,047.88/x
  3. Step 3: Cross multiply
    2,921.97x = 4,383.87 × 1,047.88
  4. Step 4: Simplify right side
    2,921.97x = 4,593,769.70
  5. Step 5: Solve for x
    x = 4,593,769.70/2,921.97
  6. Step 6: Final answer
    x = 1,572.15

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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.