Home / 3,921.23-5,883.87-2,605.90

Finding the Fourth Proportional to 3,921.23, 5,883.87 and 2,605.90

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Solution

The fourth proportional to 3,921.23, 5,883.87 and 2,605.90 is: 3,910.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.23 : 5,883.87 = 2,605.90 : x
  2. Step 2: Convert to fraction form
    3,921.23/5,883.87 = 2,605.90/x
  3. Step 3: Cross multiply
    3,921.23x = 5,883.87 × 2,605.90
  4. Step 4: Simplify right side
    3,921.23x = 15,332,762.12
  5. Step 5: Solve for x
    x = 15,332,762.12/3,921.23
  6. Step 6: Final answer
    x = 3,910.19

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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.