Home / 5,211.13-7,192.04-2,972.49

Finding the Fourth Proportional to 5,211.13, 7,192.04 and 2,972.49

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Solution

The fourth proportional to 5,211.13, 7,192.04 and 2,972.49 is: 4,102.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.13 : 7,192.04 = 2,972.49 : x
  2. Step 2: Convert to fraction form
    5,211.13/7,192.04 = 2,972.49/x
  3. Step 3: Cross multiply
    5,211.13x = 7,192.04 × 2,972.49
  4. Step 4: Simplify right side
    5,211.13x = 21,378,252.12
  5. Step 5: Solve for x
    x = 21,378,252.12/5,211.13
  6. Step 6: Final answer
    x = 4,102.42

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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.