Home / 3,781.95-5,220.09-2,663.22

Finding the Fourth Proportional to 3,781.95, 5,220.09 and 2,663.22

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Solution

The fourth proportional to 3,781.95, 5,220.09 and 2,663.22 is: 3,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.95 : 5,220.09 = 2,663.22 : x
  2. Step 2: Convert to fraction form
    3,781.95/5,220.09 = 2,663.22/x
  3. Step 3: Cross multiply
    3,781.95x = 5,220.09 × 2,663.22
  4. Step 4: Simplify right side
    3,781.95x = 13,902,248.09
  5. Step 5: Solve for x
    x = 13,902,248.09/3,781.95
  6. Step 6: Final answer
    x = 3,675.95

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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.