Home / 3,921.64-5,887.67-2,279.37

Finding the Fourth Proportional to 3,921.64, 5,887.67 and 2,279.37

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Solution

The fourth proportional to 3,921.64, 5,887.67 and 2,279.37 is: 3,422.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.64 : 5,887.67 = 2,279.37 : x
  2. Step 2: Convert to fraction form
    3,921.64/5,887.67 = 2,279.37/x
  3. Step 3: Cross multiply
    3,921.64x = 5,887.67 × 2,279.37
  4. Step 4: Simplify right side
    3,921.64x = 13,420,178.37
  5. Step 5: Solve for x
    x = 13,420,178.37/3,921.64
  6. Step 6: Final answer
    x = 3,422.08

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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.