Home / 7,105.11-10,655.94-3,154.20

Finding the Fourth Proportional to 7,105.11, 10,655.94 and 3,154.20

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Solution

The fourth proportional to 7,105.11, 10,655.94 and 3,154.20 is: 4,730.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,105.11 : 10,655.94 = 3,154.20 : x
  2. Step 2: Convert to fraction form
    7,105.11/10,655.94 = 3,154.20/x
  3. Step 3: Cross multiply
    7,105.11x = 10,655.94 × 3,154.20
  4. Step 4: Simplify right side
    7,105.11x = 33,610,965.95
  5. Step 5: Solve for x
    x = 33,610,965.95/7,105.11
  6. Step 6: Final answer
    x = 4,730.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.