Home / 5,627.16-7,765.38-3,109.37

Finding the Fourth Proportional to 5,627.16, 7,765.38 and 3,109.37

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Solution

The fourth proportional to 5,627.16, 7,765.38 and 3,109.37 is: 4,290.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,627.16 : 7,765.38 = 3,109.37 : x
  2. Step 2: Convert to fraction form
    5,627.16/7,765.38 = 3,109.37/x
  3. Step 3: Cross multiply
    5,627.16x = 7,765.38 × 3,109.37
  4. Step 4: Simplify right side
    5,627.16x = 24,145,459.02
  5. Step 5: Solve for x
    x = 24,145,459.02/5,627.16
  6. Step 6: Final answer
    x = 4,290.88

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1.5x scale

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.