Home / 3,115.60-4,673.40-2,777.29

Finding the Fourth Proportional to 3,115.60, 4,673.40 and 2,777.29

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Solution

The fourth proportional to 3,115.60, 4,673.40 and 2,777.29 is: 4,165.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.60 : 4,673.40 = 2,777.29 : x
  2. Step 2: Convert to fraction form
    3,115.60/4,673.40 = 2,777.29/x
  3. Step 3: Cross multiply
    3,115.60x = 4,673.40 × 2,777.29
  4. Step 4: Simplify right side
    3,115.60x = 12,979,387.09
  5. Step 5: Solve for x
    x = 12,979,387.09/3,115.60
  6. Step 6: Final answer
    x = 4,165.94

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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.