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Finding the Fourth Proportional to 6,696.28, 9,241.02 and 3,900.76

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Solution

The fourth proportional to 6,696.28, 9,241.02 and 3,900.76 is: 5,383.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,696.28 : 9,241.02 = 3,900.76 : x
  2. Step 2: Convert to fraction form
    6,696.28/9,241.02 = 3,900.76/x
  3. Step 3: Cross multiply
    6,696.28x = 9,241.02 × 3,900.76
  4. Step 4: Simplify right side
    6,696.28x = 36,047,001.18
  5. Step 5: Solve for x
    x = 36,047,001.18/6,696.28
  6. Step 6: Final answer
    x = 5,383.14

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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.