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Finding the Fourth Proportional to 2,779.97, 4,170.56 and 832.02

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Solution

The fourth proportional to 2,779.97, 4,170.56 and 832.02 is: 1,248.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.97 : 4,170.56 = 832.02 : x
  2. Step 2: Convert to fraction form
    2,779.97/4,170.56 = 832.02/x
  3. Step 3: Cross multiply
    2,779.97x = 4,170.56 × 832.02
  4. Step 4: Simplify right side
    2,779.97x = 3,469,964.32
  5. Step 5: Solve for x
    x = 3,469,964.32/2,779.97
  6. Step 6: Final answer
    x = 1,248.20

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1.5x scale

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.