Home / 5,627.13-7,765.40-3,109.41

Finding the Fourth Proportional to 5,627.13, 7,765.40 and 3,109.41

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Solution

The fourth proportional to 5,627.13, 7,765.40 and 3,109.41 is: 4,290.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,627.13 : 7,765.40 = 3,109.41 : x
  2. Step 2: Convert to fraction form
    5,627.13/7,765.40 = 3,109.41/x
  3. Step 3: Cross multiply
    5,627.13x = 7,765.40 × 3,109.41
  4. Step 4: Simplify right side
    5,627.13x = 24,145,796.87
  5. Step 5: Solve for x
    x = 24,145,796.87/5,627.13
  6. Step 6: Final answer
    x = 4,290.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.