Home / 4,811.12-7,219.20-2,502.80

Finding the Fourth Proportional to 4,811.12, 7,219.20 and 2,502.80

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Solution

The fourth proportional to 4,811.12, 7,219.20 and 2,502.80 is: 3,755.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.12 : 7,219.20 = 2,502.80 : x
  2. Step 2: Convert to fraction form
    4,811.12/7,219.20 = 2,502.80/x
  3. Step 3: Cross multiply
    4,811.12x = 7,219.20 × 2,502.80
  4. Step 4: Simplify right side
    4,811.12x = 18,068,213.76
  5. Step 5: Solve for x
    x = 18,068,213.76/4,811.12
  6. Step 6: Final answer
    x = 3,755.51

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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.