Home / 6,609.33-9,120.57-3,958.20

Finding the Fourth Proportional to 6,609.33, 9,120.57 and 3,958.20

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Solution

The fourth proportional to 6,609.33, 9,120.57 and 3,958.20 is: 5,462.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.33 : 9,120.57 = 3,958.20 : x
  2. Step 2: Convert to fraction form
    6,609.33/9,120.57 = 3,958.20/x
  3. Step 3: Cross multiply
    6,609.33x = 9,120.57 × 3,958.20
  4. Step 4: Simplify right side
    6,609.33x = 36,101,040.17
  5. Step 5: Solve for x
    x = 36,101,040.17/6,609.33
  6. Step 6: Final answer
    x = 5,462.13

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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.