Home / 7,320.28-10,102.07-3,963.16

Finding the Fourth Proportional to 7,320.28, 10,102.07 and 3,963.16

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Solution

The fourth proportional to 7,320.28, 10,102.07 and 3,963.16 is: 5,469.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.28 : 10,102.07 = 3,963.16 : x
  2. Step 2: Convert to fraction form
    7,320.28/10,102.07 = 3,963.16/x
  3. Step 3: Cross multiply
    7,320.28x = 10,102.07 × 3,963.16
  4. Step 4: Simplify right side
    7,320.28x = 40,036,112.55
  5. Step 5: Solve for x
    x = 40,036,112.55/7,320.28
  6. Step 6: Final answer
    x = 5,469.21

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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.