Home / 4,220.29-5,823.91-2,331.78

Finding the Fourth Proportional to 4,220.29, 5,823.91 and 2,331.78

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Solution

The fourth proportional to 4,220.29, 5,823.91 and 2,331.78 is: 3,217.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.29 : 5,823.91 = 2,331.78 : x
  2. Step 2: Convert to fraction form
    4,220.29/5,823.91 = 2,331.78/x
  3. Step 3: Cross multiply
    4,220.29x = 5,823.91 × 2,331.78
  4. Step 4: Simplify right side
    4,220.29x = 13,580,076.86
  5. Step 5: Solve for x
    x = 13,580,076.86/4,220.29
  6. Step 6: Final answer
    x = 3,217.81

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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.