Home / 1,517.78-2,277.96-1,284.98

Finding the Fourth Proportional to 1,517.78, 2,277.96 and 1,284.98

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Solution

The fourth proportional to 1,517.78, 2,277.96 and 1,284.98 is: 1,928.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.78 : 2,277.96 = 1,284.98 : x
  2. Step 2: Convert to fraction form
    1,517.78/2,277.96 = 1,284.98/x
  3. Step 3: Cross multiply
    1,517.78x = 2,277.96 × 1,284.98
  4. Step 4: Simplify right side
    1,517.78x = 2,927,133.04
  5. Step 5: Solve for x
    x = 2,927,133.04/1,517.78
  6. Step 6: Final answer
    x = 1,928.56

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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.