Home / 7,125.21-10,691.46-3,229.11

Finding the Fourth Proportional to 7,125.21, 10,691.46 and 3,229.11

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Solution

The fourth proportional to 7,125.21, 10,691.46 and 3,229.11 is: 4,845.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.21 : 10,691.46 = 3,229.11 : x
  2. Step 2: Convert to fraction form
    7,125.21/10,691.46 = 3,229.11/x
  3. Step 3: Cross multiply
    7,125.21x = 10,691.46 × 3,229.11
  4. Step 4: Simplify right side
    7,125.21x = 34,523,900.40
  5. Step 5: Solve for x
    x = 34,523,900.40/7,125.21
  6. Step 6: Final answer
    x = 4,845.32

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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.