Home / 5,251.92-7,247.81-2,894.21

Finding the Fourth Proportional to 5,251.92, 7,247.81 and 2,894.21

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Solution

The fourth proportional to 5,251.92, 7,247.81 and 2,894.21 is: 3,994.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.92 : 7,247.81 = 2,894.21 : x
  2. Step 2: Convert to fraction form
    5,251.92/7,247.81 = 2,894.21/x
  3. Step 3: Cross multiply
    5,251.92x = 7,247.81 × 2,894.21
  4. Step 4: Simplify right side
    5,251.92x = 20,976,706.84
  5. Step 5: Solve for x
    x = 20,976,706.84/5,251.92
  6. Step 6: Final answer
    x = 3,994.10

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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.