Home / 3,902.42-5,384.73-2,223.90

Finding the Fourth Proportional to 3,902.42, 5,384.73 and 2,223.90

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Solution

The fourth proportional to 3,902.42, 5,384.73 and 2,223.90 is: 3,068.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.42 : 5,384.73 = 2,223.90 : x
  2. Step 2: Convert to fraction form
    3,902.42/5,384.73 = 2,223.90/x
  3. Step 3: Cross multiply
    3,902.42x = 5,384.73 × 2,223.90
  4. Step 4: Simplify right side
    3,902.42x = 11,975,101.05
  5. Step 5: Solve for x
    x = 11,975,101.05/3,902.42
  6. Step 6: Final answer
    x = 3,068.63

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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.