Home / 7,320.20-10,101.90-3,963.05

Finding the Fourth Proportional to 7,320.20, 10,101.90 and 3,963.05

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Solution

The fourth proportional to 7,320.20, 10,101.90 and 3,963.05 is: 5,469.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.20 : 10,101.90 = 3,963.05 : x
  2. Step 2: Convert to fraction form
    7,320.20/10,101.90 = 3,963.05/x
  3. Step 3: Cross multiply
    7,320.20x = 10,101.90 × 3,963.05
  4. Step 4: Simplify right side
    7,320.20x = 40,034,284.29
  5. Step 5: Solve for x
    x = 40,034,284.29/7,320.20
  6. Step 6: Final answer
    x = 5,469.02

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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.