Home / 2,991.28-4,481.97-1,528.42

Finding the Fourth Proportional to 2,991.28, 4,481.97 and 1,528.42

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Solution

The fourth proportional to 2,991.28, 4,481.97 and 1,528.42 is: 2,290.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.28 : 4,481.97 = 1,528.42 : x
  2. Step 2: Convert to fraction form
    2,991.28/4,481.97 = 1,528.42/x
  3. Step 3: Cross multiply
    2,991.28x = 4,481.97 × 1,528.42
  4. Step 4: Simplify right side
    2,991.28x = 6,850,332.59
  5. Step 5: Solve for x
    x = 6,850,332.59/2,991.28
  6. Step 6: Final answer
    x = 2,290.10

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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.