Home / 7,320.71-10,102.49-3,963.46

Finding the Fourth Proportional to 7,320.71, 10,102.49 and 3,963.46

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Solution

The fourth proportional to 7,320.71, 10,102.49 and 3,963.46 is: 5,469.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.71 : 10,102.49 = 3,963.46 : x
  2. Step 2: Convert to fraction form
    7,320.71/10,102.49 = 3,963.46/x
  3. Step 3: Cross multiply
    7,320.71x = 10,102.49 × 3,963.46
  4. Step 4: Simplify right side
    7,320.71x = 40,040,764.50
  5. Step 5: Solve for x
    x = 40,040,764.50/7,320.71
  6. Step 6: Final answer
    x = 5,469.52

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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.