Home / 3,918.42-5,881.14-1,839.63

Finding the Fourth Proportional to 3,918.42, 5,881.14 and 1,839.63

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Solution

The fourth proportional to 3,918.42, 5,881.14 and 1,839.63 is: 2,761.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.42 : 5,881.14 = 1,839.63 : x
  2. Step 2: Convert to fraction form
    3,918.42/5,881.14 = 1,839.63/x
  3. Step 3: Cross multiply
    3,918.42x = 5,881.14 × 1,839.63
  4. Step 4: Simplify right side
    3,918.42x = 10,819,121.58
  5. Step 5: Solve for x
    x = 10,819,121.58/3,918.42
  6. Step 6: Final answer
    x = 2,761.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.