Home / 5,141.43-7,713.77-2,221.11

Finding the Fourth Proportional to 5,141.43, 7,713.77 and 2,221.11

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Solution

The fourth proportional to 5,141.43, 7,713.77 and 2,221.11 is: 3,332.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141.43 : 7,713.77 = 2,221.11 : x
  2. Step 2: Convert to fraction form
    5,141.43/7,713.77 = 2,221.11/x
  3. Step 3: Cross multiply
    5,141.43x = 7,713.77 × 2,221.11
  4. Step 4: Simplify right side
    5,141.43x = 17,133,120.58
  5. Step 5: Solve for x
    x = 17,133,120.58/5,141.43
  6. Step 6: Final answer
    x = 3,332.36

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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.