Home / 2,209.59-3,314.75-748.26

Finding the Fourth Proportional to 2,209.59, 3,314.75 and 748.26

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Solution

The fourth proportional to 2,209.59, 3,314.75 and 748.26 is: 1,122.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.59 : 3,314.75 = 748.26 : x
  2. Step 2: Convert to fraction form
    2,209.59/3,314.75 = 748.26/x
  3. Step 3: Cross multiply
    2,209.59x = 3,314.75 × 748.26
  4. Step 4: Simplify right side
    2,209.59x = 2,480,291.09
  5. Step 5: Solve for x
    x = 2,480,291.09/2,209.59
  6. Step 6: Final answer
    x = 1,122.51

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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.