Home / 3,211.88-4,429.96-2,218.82

Finding the Fourth Proportional to 3,211.88, 4,429.96 and 2,218.82

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Solution

The fourth proportional to 3,211.88, 4,429.96 and 2,218.82 is: 3,060.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.88 : 4,429.96 = 2,218.82 : x
  2. Step 2: Convert to fraction form
    3,211.88/4,429.96 = 2,218.82/x
  3. Step 3: Cross multiply
    3,211.88x = 4,429.96 × 2,218.82
  4. Step 4: Simplify right side
    3,211.88x = 9,829,256.15
  5. Step 5: Solve for x
    x = 9,829,256.15/3,211.88
  6. Step 6: Final answer
    x = 3,060.29

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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.