Home / 5,217.92-7,820-2,293.12

Finding the Fourth Proportional to 5,217.92, 7,820 and 2,293.12

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Solution

The fourth proportional to 5,217.92, 7,820 and 2,293.12 is: 3,436.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.92 : 7,820 = 2,293.12 : x
  2. Step 2: Convert to fraction form
    5,217.92/7,820 = 2,293.12/x
  3. Step 3: Cross multiply
    5,217.92x = 7,820 × 2,293.12
  4. Step 4: Simplify right side
    5,217.92x = 17,932,198.40
  5. Step 5: Solve for x
    x = 17,932,198.40/5,217.92
  6. Step 6: Final answer
    x = 3,436.66

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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.