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Finding the Fourth Proportional to 6,601.26, 9,109.74 and 3,948.68

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Solution

The fourth proportional to 6,601.26, 9,109.74 and 3,948.68 is: 5,449.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,601.26 : 9,109.74 = 3,948.68 : x
  2. Step 2: Convert to fraction form
    6,601.26/9,109.74 = 3,948.68/x
  3. Step 3: Cross multiply
    6,601.26x = 9,109.74 × 3,948.68
  4. Step 4: Simplify right side
    6,601.26x = 35,971,402.59
  5. Step 5: Solve for x
    x = 35,971,402.59/6,601.26
  6. Step 6: Final answer
    x = 5,449.17

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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.