Home / 7,486.80-11,237.40-3,793.20

Finding the Fourth Proportional to 7,486.80, 11,237.40 and 3,793.20

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Solution

The fourth proportional to 7,486.80, 11,237.40 and 3,793.20 is: 5,693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.80 : 11,237.40 = 3,793.20 : x
  2. Step 2: Convert to fraction form
    7,486.80/11,237.40 = 3,793.20/x
  3. Step 3: Cross multiply
    7,486.80x = 11,237.40 × 3,793.20
  4. Step 4: Simplify right side
    7,486.80x = 42,625,705.68
  5. Step 5: Solve for x
    x = 42,625,705.68/7,486.80
  6. Step 6: Final answer
    x = 5,693.45

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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.