Home / 5,251.92-7,247.88-2,894.15

Finding the Fourth Proportional to 5,251.92, 7,247.88 and 2,894.15

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Solution

The fourth proportional to 5,251.92, 7,247.88 and 2,894.15 is: 3,994.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.92 : 7,247.88 = 2,894.15 : x
  2. Step 2: Convert to fraction form
    5,251.92/7,247.88 = 2,894.15/x
  3. Step 3: Cross multiply
    5,251.92x = 7,247.88 × 2,894.15
  4. Step 4: Simplify right side
    5,251.92x = 20,976,451.90
  5. Step 5: Solve for x
    x = 20,976,451.90/5,251.92
  6. Step 6: Final answer
    x = 3,994.05

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1.5x scale

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.