Home / 3,902.31-5,384.70-2,223.54

Finding the Fourth Proportional to 3,902.31, 5,384.70 and 2,223.54

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Solution

The fourth proportional to 3,902.31, 5,384.70 and 2,223.54 is: 3,068.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.31 : 5,384.70 = 2,223.54 : x
  2. Step 2: Convert to fraction form
    3,902.31/5,384.70 = 2,223.54/x
  3. Step 3: Cross multiply
    3,902.31x = 5,384.70 × 2,223.54
  4. Step 4: Simplify right side
    3,902.31x = 11,973,095.84
  5. Step 5: Solve for x
    x = 11,973,095.84/3,902.31
  6. Step 6: Final answer
    x = 3,068.21

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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.