Home / 2,004.30-2,766-1,120.20

Finding the Fourth Proportional to 2,004.30, 2,766 and 1,120.20

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Solution

The fourth proportional to 2,004.30, 2,766 and 1,120.20 is: 1,545.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,004.30 : 2,766 = 1,120.20 : x
  2. Step 2: Convert to fraction form
    2,004.30/2,766 = 1,120.20/x
  3. Step 3: Cross multiply
    2,004.30x = 2,766 × 1,120.20
  4. Step 4: Simplify right side
    2,004.30x = 3,098,473.20
  5. Step 5: Solve for x
    x = 3,098,473.20/2,004.30
  6. Step 6: Final answer
    x = 1,545.91

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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.