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Finding the Fourth Proportional to 5,065.44, 6,974.64 and 3,871.44

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Solution

The fourth proportional to 5,065.44, 6,974.64 and 3,871.44 is: 5,330.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,065.44 : 6,974.64 = 3,871.44 : x
  2. Step 2: Convert to fraction form
    5,065.44/6,974.64 = 3,871.44/x
  3. Step 3: Cross multiply
    5,065.44x = 6,974.64 × 3,871.44
  4. Step 4: Simplify right side
    5,065.44x = 27,001,900.28
  5. Step 5: Solve for x
    x = 27,001,900.28/5,065.44
  6. Step 6: Final answer
    x = 5,330.61

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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.