Home / 4,221.27-5,818.37-3,171.51

Finding the Fourth Proportional to 4,221.27, 5,818.37 and 3,171.51

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Solution

The fourth proportional to 4,221.27, 5,818.37 and 3,171.51 is: 4,371.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.27 : 5,818.37 = 3,171.51 : x
  2. Step 2: Convert to fraction form
    4,221.27/5,818.37 = 3,171.51/x
  3. Step 3: Cross multiply
    4,221.27x = 5,818.37 × 3,171.51
  4. Step 4: Simplify right side
    4,221.27x = 18,453,002.78
  5. Step 5: Solve for x
    x = 18,453,002.78/4,221.27
  6. Step 6: Final answer
    x = 4,371.43

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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.