Home / 2,772.25-4,159.06-824.45

Finding the Fourth Proportional to 2,772.25, 4,159.06 and 824.45

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Solution

The fourth proportional to 2,772.25, 4,159.06 and 824.45 is: 1,236.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.25 : 4,159.06 = 824.45 : x
  2. Step 2: Convert to fraction form
    2,772.25/4,159.06 = 824.45/x
  3. Step 3: Cross multiply
    2,772.25x = 4,159.06 × 824.45
  4. Step 4: Simplify right side
    2,772.25x = 3,428,937.02
  5. Step 5: Solve for x
    x = 3,428,937.02/2,772.25
  6. Step 6: Final answer
    x = 1,236.88

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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.