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Finding the Fourth Proportional to 7,209.81, 10,816.16 and 3,049.81

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Solution

The fourth proportional to 7,209.81, 10,816.16 and 3,049.81 is: 4,575.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.81 : 10,816.16 = 3,049.81 : x
  2. Step 2: Convert to fraction form
    7,209.81/10,816.16 = 3,049.81/x
  3. Step 3: Cross multiply
    7,209.81x = 10,816.16 × 3,049.81
  4. Step 4: Simplify right side
    7,209.81x = 32,987,232.93
  5. Step 5: Solve for x
    x = 32,987,232.93/7,209.81
  6. Step 6: Final answer
    x = 4,575.33

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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.