Home / 2,812.25-4,215.49-1,169.75

Finding the Fourth Proportional to 2,812.25, 4,215.49 and 1,169.75

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Solution

The fourth proportional to 2,812.25, 4,215.49 and 1,169.75 is: 1,753.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.25 : 4,215.49 = 1,169.75 : x
  2. Step 2: Convert to fraction form
    2,812.25/4,215.49 = 1,169.75/x
  3. Step 3: Cross multiply
    2,812.25x = 4,215.49 × 1,169.75
  4. Step 4: Simplify right side
    2,812.25x = 4,931,069.43
  5. Step 5: Solve for x
    x = 4,931,069.43/2,812.25
  6. Step 6: Final answer
    x = 1,753.42

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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.