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Finding the Fourth Proportional to 5,167.94, 7,745.52 and 2,390.78

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Solution

The fourth proportional to 5,167.94, 7,745.52 and 2,390.78 is: 3,583.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.94 : 7,745.52 = 2,390.78 : x
  2. Step 2: Convert to fraction form
    5,167.94/7,745.52 = 2,390.78/x
  3. Step 3: Cross multiply
    5,167.94x = 7,745.52 × 2,390.78
  4. Step 4: Simplify right side
    5,167.94x = 18,517,862.63
  5. Step 5: Solve for x
    x = 18,517,862.63/5,167.94
  6. Step 6: Final answer
    x = 3,583.22

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1.5x scale

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.