Home / 7,271.20-10,906.68-3,167.20

Finding the Fourth Proportional to 7,271.20, 10,906.68 and 3,167.20

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Solution

The fourth proportional to 7,271.20, 10,906.68 and 3,167.20 is: 4,750.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.20 : 10,906.68 = 3,167.20 : x
  2. Step 2: Convert to fraction form
    7,271.20/10,906.68 = 3,167.20/x
  3. Step 3: Cross multiply
    7,271.20x = 10,906.68 × 3,167.20
  4. Step 4: Simplify right side
    7,271.20x = 34,543,636.90
  5. Step 5: Solve for x
    x = 34,543,636.90/7,271.20
  6. Step 6: Final answer
    x = 4,750.75

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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.