Home / 2,769.22-4,167.77-2,079.50

Finding the Fourth Proportional to 2,769.22, 4,167.77 and 2,079.50

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Solution

The fourth proportional to 2,769.22, 4,167.77 and 2,079.50 is: 3,129.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.22 : 4,167.77 = 2,079.50 : x
  2. Step 2: Convert to fraction form
    2,769.22/4,167.77 = 2,079.50/x
  3. Step 3: Cross multiply
    2,769.22x = 4,167.77 × 2,079.50
  4. Step 4: Simplify right side
    2,769.22x = 8,666,867.32
  5. Step 5: Solve for x
    x = 8,666,867.32/2,769.22
  6. Step 6: Final answer
    x = 3,129.72

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.