Home / 3,713.76-5,124.75-2,221.71

Finding the Fourth Proportional to 3,713.76, 5,124.75 and 2,221.71

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Solution

The fourth proportional to 3,713.76, 5,124.75 and 2,221.71 is: 3,065.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.76 : 5,124.75 = 2,221.71 : x
  2. Step 2: Convert to fraction form
    3,713.76/5,124.75 = 2,221.71/x
  3. Step 3: Cross multiply
    3,713.76x = 5,124.75 × 2,221.71
  4. Step 4: Simplify right side
    3,713.76x = 11,385,708.32
  5. Step 5: Solve for x
    x = 11,385,708.32/3,713.76
  6. Step 6: Final answer
    x = 3,065.82

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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.