Home / 5,221.26-7,834.32-2,621.16

Finding the Fourth Proportional to 5,221.26, 7,834.32 and 2,621.16

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Solution

The fourth proportional to 5,221.26, 7,834.32 and 2,621.16 is: 3,932.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.26 : 7,834.32 = 2,621.16 : x
  2. Step 2: Convert to fraction form
    5,221.26/7,834.32 = 2,621.16/x
  3. Step 3: Cross multiply
    5,221.26x = 7,834.32 × 2,621.16
  4. Step 4: Simplify right side
    5,221.26x = 20,535,006.21
  5. Step 5: Solve for x
    x = 20,535,006.21/5,221.26
  6. Step 6: Final answer
    x = 3,932.96

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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.