Home / 1,977.97-2,729.61-1,093.78

Finding the Fourth Proportional to 1,977.97, 2,729.61 and 1,093.78

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Solution

The fourth proportional to 1,977.97, 2,729.61 and 1,093.78 is: 1,509.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.97 : 2,729.61 = 1,093.78 : x
  2. Step 2: Convert to fraction form
    1,977.97/2,729.61 = 1,093.78/x
  3. Step 3: Cross multiply
    1,977.97x = 2,729.61 × 1,093.78
  4. Step 4: Simplify right side
    1,977.97x = 2,985,605.20
  5. Step 5: Solve for x
    x = 2,985,605.20/1,977.97
  6. Step 6: Final answer
    x = 1,509.43

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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.