Home / 3,418.12-5,127.86-1,227.03

Finding the Fourth Proportional to 3,418.12, 5,127.86 and 1,227.03

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Solution

The fourth proportional to 3,418.12, 5,127.86 and 1,227.03 is: 1,840.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.12 : 5,127.86 = 1,227.03 : x
  2. Step 2: Convert to fraction form
    3,418.12/5,127.86 = 1,227.03/x
  3. Step 3: Cross multiply
    3,418.12x = 5,127.86 × 1,227.03
  4. Step 4: Simplify right side
    3,418.12x = 6,292,038.06
  5. Step 5: Solve for x
    x = 6,292,038.06/3,418.12
  6. Step 6: Final answer
    x = 1,840.79

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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.