Home / 4,220.31-5,823.83-2,331.80

Finding the Fourth Proportional to 4,220.31, 5,823.83 and 2,331.80

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Solution

The fourth proportional to 4,220.31, 5,823.83 and 2,331.80 is: 3,217.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.31 : 5,823.83 = 2,331.80 : x
  2. Step 2: Convert to fraction form
    4,220.31/5,823.83 = 2,331.80/x
  3. Step 3: Cross multiply
    4,220.31x = 5,823.83 × 2,331.80
  4. Step 4: Simplify right side
    4,220.31x = 13,580,019.66
  5. Step 5: Solve for x
    x = 13,580,019.66/4,220.31
  6. Step 6: Final answer
    x = 3,217.78

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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.