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Finding the Fourth Proportional to 2,866.78, 4,299.06 and 1,017.56

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Solution

The fourth proportional to 2,866.78, 4,299.06 and 1,017.56 is: 1,525.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,866.78 : 4,299.06 = 1,017.56 : x
  2. Step 2: Convert to fraction form
    2,866.78/4,299.06 = 1,017.56/x
  3. Step 3: Cross multiply
    2,866.78x = 4,299.06 × 1,017.56
  4. Step 4: Simplify right side
    2,866.78x = 4,374,551.49
  5. Step 5: Solve for x
    x = 4,374,551.49/2,866.78
  6. Step 6: Final answer
    x = 1,525.95

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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.