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Finding the Fourth Proportional to 5,986.87, 8,266.72 and 3,863.45

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Solution

The fourth proportional to 5,986.87, 8,266.72 and 3,863.45 is: 5,334.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,986.87 : 8,266.72 = 3,863.45 : x
  2. Step 2: Convert to fraction form
    5,986.87/8,266.72 = 3,863.45/x
  3. Step 3: Cross multiply
    5,986.87x = 8,266.72 × 3,863.45
  4. Step 4: Simplify right side
    5,986.87x = 31,938,059.38
  5. Step 5: Solve for x
    x = 31,938,059.38/5,986.87
  6. Step 6: Final answer
    x = 5,334.68

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1.5x scale

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.