Home / 6,600.78-9,110.26-3,948.48

Finding the Fourth Proportional to 6,600.78, 9,110.26 and 3,948.48

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Solution

The fourth proportional to 6,600.78, 9,110.26 and 3,948.48 is: 5,449.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,600.78 : 9,110.26 = 3,948.48 : x
  2. Step 2: Convert to fraction form
    6,600.78/9,110.26 = 3,948.48/x
  3. Step 3: Cross multiply
    6,600.78x = 9,110.26 × 3,948.48
  4. Step 4: Simplify right side
    6,600.78x = 35,971,679.40
  5. Step 5: Solve for x
    x = 35,971,679.40/6,600.78
  6. Step 6: Final answer
    x = 5,449.61

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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.