Home / 7,747.68-11,621.46-2,817.22

Finding the Fourth Proportional to 7,747.68, 11,621.46 and 2,817.22

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Solution

The fourth proportional to 7,747.68, 11,621.46 and 2,817.22 is: 4,225.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.68 : 11,621.46 = 2,817.22 : x
  2. Step 2: Convert to fraction form
    7,747.68/11,621.46 = 2,817.22/x
  3. Step 3: Cross multiply
    7,747.68x = 11,621.46 × 2,817.22
  4. Step 4: Simplify right side
    7,747.68x = 32,740,209.54
  5. Step 5: Solve for x
    x = 32,740,209.54/7,747.68
  6. Step 6: Final answer
    x = 4,225.81

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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.