Home / 3,213.76-4,818.54-2,114.78

Finding the Fourth Proportional to 3,213.76, 4,818.54 and 2,114.78

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Solution

The fourth proportional to 3,213.76, 4,818.54 and 2,114.78 is: 3,170.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.76 : 4,818.54 = 2,114.78 : x
  2. Step 2: Convert to fraction form
    3,213.76/4,818.54 = 2,114.78/x
  3. Step 3: Cross multiply
    3,213.76x = 4,818.54 × 2,114.78
  4. Step 4: Simplify right side
    3,213.76x = 10,190,152.02
  5. Step 5: Solve for x
    x = 10,190,152.02/3,213.76
  6. Step 6: Final answer
    x = 3,170.79

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1.5x scale

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.