Home / 7,320.34-10,102-3,963.12

Finding the Fourth Proportional to 7,320.34, 10,102 and 3,963.12

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Solution

The fourth proportional to 7,320.34, 10,102 and 3,963.12 is: 5,469.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.34 : 10,102 = 3,963.12 : x
  2. Step 2: Convert to fraction form
    7,320.34/10,102 = 3,963.12/x
  3. Step 3: Cross multiply
    7,320.34x = 10,102 × 3,963.12
  4. Step 4: Simplify right side
    7,320.34x = 40,035,438.24
  5. Step 5: Solve for x
    x = 40,035,438.24/7,320.34
  6. Step 6: Final answer
    x = 5,469.07

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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.