Home / 7,540.90-11,314.38-3,378.04

Finding the Fourth Proportional to 7,540.90, 11,314.38 and 3,378.04

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Solution

The fourth proportional to 7,540.90, 11,314.38 and 3,378.04 is: 5,068.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.90 : 11,314.38 = 3,378.04 : x
  2. Step 2: Convert to fraction form
    7,540.90/11,314.38 = 3,378.04/x
  3. Step 3: Cross multiply
    7,540.90x = 11,314.38 × 3,378.04
  4. Step 4: Simplify right side
    7,540.90x = 38,220,428.22
  5. Step 5: Solve for x
    x = 38,220,428.22/7,540.90
  6. Step 6: Final answer
    x = 5,068.42

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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.