Home / 3,221.93-4,454.39-2,381.31

Finding the Fourth Proportional to 3,221.93, 4,454.39 and 2,381.31

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Solution

The fourth proportional to 3,221.93, 4,454.39 and 2,381.31 is: 3,292.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.93 : 4,454.39 = 2,381.31 : x
  2. Step 2: Convert to fraction form
    3,221.93/4,454.39 = 2,381.31/x
  3. Step 3: Cross multiply
    3,221.93x = 4,454.39 × 2,381.31
  4. Step 4: Simplify right side
    3,221.93x = 10,607,283.45
  5. Step 5: Solve for x
    x = 10,607,283.45/3,221.93
  6. Step 6: Final answer
    x = 3,292.21

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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.