Home / 3,943.20-5,902.50-2,904.38

Finding the Fourth Proportional to 3,943.20, 5,902.50 and 2,904.38

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Solution

The fourth proportional to 3,943.20, 5,902.50 and 2,904.38 is: 4,347.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.20 : 5,902.50 = 2,904.38 : x
  2. Step 2: Convert to fraction form
    3,943.20/5,902.50 = 2,904.38/x
  3. Step 3: Cross multiply
    3,943.20x = 5,902.50 × 2,904.38
  4. Step 4: Simplify right side
    3,943.20x = 17,143,058.92
  5. Step 5: Solve for x
    x = 17,143,058.92/3,943.20
  6. Step 6: Final answer
    x = 4,347.50

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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.