Home / 3,942.42-5,440.51-2,174.02

Finding the Fourth Proportional to 3,942.42, 5,440.51 and 2,174.02

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Solution

The fourth proportional to 3,942.42, 5,440.51 and 2,174.02 is: 3,000.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.42 : 5,440.51 = 2,174.02 : x
  2. Step 2: Convert to fraction form
    3,942.42/5,440.51 = 2,174.02/x
  3. Step 3: Cross multiply
    3,942.42x = 5,440.51 × 2,174.02
  4. Step 4: Simplify right side
    3,942.42x = 11,827,766.67
  5. Step 5: Solve for x
    x = 11,827,766.67/3,942.42
  6. Step 6: Final answer
    x = 3,000.13

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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.