Home / 3,173.54-4,387.84-2,779.43

Finding the Fourth Proportional to 3,173.54, 4,387.84 and 2,779.43

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Solution

The fourth proportional to 3,173.54, 4,387.84 and 2,779.43 is: 3,842.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.54 : 4,387.84 = 2,779.43 : x
  2. Step 2: Convert to fraction form
    3,173.54/4,387.84 = 2,779.43/x
  3. Step 3: Cross multiply
    3,173.54x = 4,387.84 × 2,779.43
  4. Step 4: Simplify right side
    3,173.54x = 12,195,691.16
  5. Step 5: Solve for x
    x = 12,195,691.16/3,173.54
  6. Step 6: Final answer
    x = 3,842.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.