Home / 3,713.28-5,124.32-2,221.55

Finding the Fourth Proportional to 3,713.28, 5,124.32 and 2,221.55

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Solution

The fourth proportional to 3,713.28, 5,124.32 and 2,221.55 is: 3,065.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.28 : 5,124.32 = 2,221.55 : x
  2. Step 2: Convert to fraction form
    3,713.28/5,124.32 = 2,221.55/x
  3. Step 3: Cross multiply
    3,713.28x = 5,124.32 × 2,221.55
  4. Step 4: Simplify right side
    3,713.28x = 11,383,925.84
  5. Step 5: Solve for x
    x = 11,383,925.84/3,713.28
  6. Step 6: Final answer
    x = 3,065.73

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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.