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Finding the Fourth Proportional to 4,894.92, 6,756.41 and 2,981.43

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Solution

The fourth proportional to 4,894.92, 6,756.41 and 2,981.43 is: 4,115.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,894.92 : 6,756.41 = 2,981.43 : x
  2. Step 2: Convert to fraction form
    4,894.92/6,756.41 = 2,981.43/x
  3. Step 3: Cross multiply
    4,894.92x = 6,756.41 × 2,981.43
  4. Step 4: Simplify right side
    4,894.92x = 20,143,770.92
  5. Step 5: Solve for x
    x = 20,143,770.92/4,894.92
  6. Step 6: Final answer
    x = 4,115.24

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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.