Home / 2,769.22-4,154.96-1,125.90

Finding the Fourth Proportional to 2,769.22, 4,154.96 and 1,125.90

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Solution

The fourth proportional to 2,769.22, 4,154.96 and 1,125.90 is: 1,689.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.22 : 4,154.96 = 1,125.90 : x
  2. Step 2: Convert to fraction form
    2,769.22/4,154.96 = 1,125.90/x
  3. Step 3: Cross multiply
    2,769.22x = 4,154.96 × 1,125.90
  4. Step 4: Simplify right side
    2,769.22x = 4,678,069.46
  5. Step 5: Solve for x
    x = 4,678,069.46/2,769.22
  6. Step 6: Final answer
    x = 1,689.31

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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.