Home / 1,815.97-2,505.27-1,107.55

Finding the Fourth Proportional to 1,815.97, 2,505.27 and 1,107.55

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Solution

The fourth proportional to 1,815.97, 2,505.27 and 1,107.55 is: 1,527.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.97 : 2,505.27 = 1,107.55 : x
  2. Step 2: Convert to fraction form
    1,815.97/2,505.27 = 1,107.55/x
  3. Step 3: Cross multiply
    1,815.97x = 2,505.27 × 1,107.55
  4. Step 4: Simplify right side
    1,815.97x = 2,774,711.79
  5. Step 5: Solve for x
    x = 2,774,711.79/1,815.97
  6. Step 6: Final answer
    x = 1,527.95

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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.