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Finding the Fourth Proportional to 7,209.03, 10,815.03 and 2,279.15

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Solution

The fourth proportional to 7,209.03, 10,815.03 and 2,279.15 is: 3,419.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.03 : 10,815.03 = 2,279.15 : x
  2. Step 2: Convert to fraction form
    7,209.03/10,815.03 = 2,279.15/x
  3. Step 3: Cross multiply
    7,209.03x = 10,815.03 × 2,279.15
  4. Step 4: Simplify right side
    7,209.03x = 24,649,021.55
  5. Step 5: Solve for x
    x = 24,649,021.55/7,209.03
  6. Step 6: Final answer
    x = 3,419.19

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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.