Home / 4,818.88-7,228.56-2,221.12

Finding the Fourth Proportional to 4,818.88, 7,228.56 and 2,221.12

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Solution

The fourth proportional to 4,818.88, 7,228.56 and 2,221.12 is: 3,331.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,818.88 : 7,228.56 = 2,221.12 : x
  2. Step 2: Convert to fraction form
    4,818.88/7,228.56 = 2,221.12/x
  3. Step 3: Cross multiply
    4,818.88x = 7,228.56 × 2,221.12
  4. Step 4: Simplify right side
    4,818.88x = 16,055,499.19
  5. Step 5: Solve for x
    x = 16,055,499.19/4,818.88
  6. Step 6: Final answer
    x = 3,331.79

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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.