Home / 2,764.65-4,147.61-1,122.33

Finding the Fourth Proportional to 2,764.65, 4,147.61 and 1,122.33

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Solution

The fourth proportional to 2,764.65, 4,147.61 and 1,122.33 is: 1,683.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.65 : 4,147.61 = 1,122.33 : x
  2. Step 2: Convert to fraction form
    2,764.65/4,147.61 = 1,122.33/x
  3. Step 3: Cross multiply
    2,764.65x = 4,147.61 × 1,122.33
  4. Step 4: Simplify right side
    2,764.65x = 4,654,981.52
  5. Step 5: Solve for x
    x = 4,654,981.52/2,764.65
  6. Step 6: Final answer
    x = 1,683.75

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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.