Home / 7,448.80-11,180.40-3,755.20

Finding the Fourth Proportional to 7,448.80, 11,180.40 and 3,755.20

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Solution

The fourth proportional to 7,448.80, 11,180.40 and 3,755.20 is: 5,636.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,448.80 : 11,180.40 = 3,755.20 : x
  2. Step 2: Convert to fraction form
    7,448.80/11,180.40 = 3,755.20/x
  3. Step 3: Cross multiply
    7,448.80x = 11,180.40 × 3,755.20
  4. Step 4: Simplify right side
    7,448.80x = 41,984,638.08
  5. Step 5: Solve for x
    x = 41,984,638.08/7,448.80
  6. Step 6: Final answer
    x = 5,636.43

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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.