Home / 2,076.88-3,113.92-1,418.88

Finding the Fourth Proportional to 2,076.88, 3,113.92 and 1,418.88

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Solution

The fourth proportional to 2,076.88, 3,113.92 and 1,418.88 is: 2,127.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076.88 : 3,113.92 = 1,418.88 : x
  2. Step 2: Convert to fraction form
    2,076.88/3,113.92 = 1,418.88/x
  3. Step 3: Cross multiply
    2,076.88x = 3,113.92 × 1,418.88
  4. Step 4: Simplify right side
    2,076.88x = 4,418,278.81
  5. Step 5: Solve for x
    x = 4,418,278.81/2,076.88
  6. Step 6: Final answer
    x = 2,127.36

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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.