Home / 2,876.74-4,315.11-1,122.28

Finding the Fourth Proportional to 2,876.74, 4,315.11 and 1,122.28

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Solution

The fourth proportional to 2,876.74, 4,315.11 and 1,122.28 is: 1,683.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.74 : 4,315.11 = 1,122.28 : x
  2. Step 2: Convert to fraction form
    2,876.74/4,315.11 = 1,122.28/x
  3. Step 3: Cross multiply
    2,876.74x = 4,315.11 × 1,122.28
  4. Step 4: Simplify right side
    2,876.74x = 4,842,761.65
  5. Step 5: Solve for x
    x = 4,842,761.65/2,876.74
  6. Step 6: Final answer
    x = 1,683.42

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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.