Home / 3,213.28-4,796.76-2,972.80

Finding the Fourth Proportional to 3,213.28, 4,796.76 and 2,972.80

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Solution

The fourth proportional to 3,213.28, 4,796.76 and 2,972.80 is: 4,437.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.28 : 4,796.76 = 2,972.80 : x
  2. Step 2: Convert to fraction form
    3,213.28/4,796.76 = 2,972.80/x
  3. Step 3: Cross multiply
    3,213.28x = 4,796.76 × 2,972.80
  4. Step 4: Simplify right side
    3,213.28x = 14,259,808.13
  5. Step 5: Solve for x
    x = 14,259,808.13/3,213.28
  6. Step 6: Final answer
    x = 4,437.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.