Home / 3,876.09-5,349.15-2,220.41

Finding the Fourth Proportional to 3,876.09, 5,349.15 and 2,220.41

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Solution

The fourth proportional to 3,876.09, 5,349.15 and 2,220.41 is: 3,064.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.09 : 5,349.15 = 2,220.41 : x
  2. Step 2: Convert to fraction form
    3,876.09/5,349.15 = 2,220.41/x
  3. Step 3: Cross multiply
    3,876.09x = 5,349.15 × 2,220.41
  4. Step 4: Simplify right side
    3,876.09x = 11,877,295.05
  5. Step 5: Solve for x
    x = 11,877,295.05/3,876.09
  6. Step 6: Final answer
    x = 3,064.25

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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.