Home / 4,121.42-5,687.78-2,353.37

Finding the Fourth Proportional to 4,121.42, 5,687.78 and 2,353.37

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Solution

The fourth proportional to 4,121.42, 5,687.78 and 2,353.37 is: 3,247.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.42 : 5,687.78 = 2,353.37 : x
  2. Step 2: Convert to fraction form
    4,121.42/5,687.78 = 2,353.37/x
  3. Step 3: Cross multiply
    4,121.42x = 5,687.78 × 2,353.37
  4. Step 4: Simplify right side
    4,121.42x = 13,385,410.61
  5. Step 5: Solve for x
    x = 13,385,410.61/4,121.42
  6. Step 6: Final answer
    x = 3,247.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.