Home / 2,781.01-3,837.80-1,522.06

Finding the Fourth Proportional to 2,781.01, 3,837.80 and 1,522.06

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Solution

The fourth proportional to 2,781.01, 3,837.80 and 1,522.06 is: 2,100.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.01 : 3,837.80 = 1,522.06 : x
  2. Step 2: Convert to fraction form
    2,781.01/3,837.80 = 1,522.06/x
  3. Step 3: Cross multiply
    2,781.01x = 3,837.80 × 1,522.06
  4. Step 4: Simplify right side
    2,781.01x = 5,841,361.87
  5. Step 5: Solve for x
    x = 5,841,361.87/2,781.01
  6. Step 6: Final answer
    x = 2,100.45

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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.