Home / 7,452.80-11,186.40-3,759.20

Finding the Fourth Proportional to 7,452.80, 11,186.40 and 3,759.20

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Solution

The fourth proportional to 7,452.80, 11,186.40 and 3,759.20 is: 5,642.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,452.80 : 11,186.40 = 3,759.20 : x
  2. Step 2: Convert to fraction form
    7,452.80/11,186.40 = 3,759.20/x
  3. Step 3: Cross multiply
    7,452.80x = 11,186.40 × 3,759.20
  4. Step 4: Simplify right side
    7,452.80x = 42,051,914.88
  5. Step 5: Solve for x
    x = 42,051,914.88/7,452.80
  6. Step 6: Final answer
    x = 5,642.43

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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.