Home / 5,238.12-7,854.09-2,605.52

Finding the Fourth Proportional to 5,238.12, 7,854.09 and 2,605.52

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Solution

The fourth proportional to 5,238.12, 7,854.09 and 2,605.52 is: 3,906.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.12 : 7,854.09 = 2,605.52 : x
  2. Step 2: Convert to fraction form
    5,238.12/7,854.09 = 2,605.52/x
  3. Step 3: Cross multiply
    5,238.12x = 7,854.09 × 2,605.52
  4. Step 4: Simplify right side
    5,238.12x = 20,463,949.31
  5. Step 5: Solve for x
    x = 20,463,949.31/5,238.12
  6. Step 6: Final answer
    x = 3,906.74

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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.