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Finding the Fourth Proportional to 3,391.96, 5,087.98 and 927.04

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Solution

The fourth proportional to 3,391.96, 5,087.98 and 927.04 is: 1,390.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.96 : 5,087.98 = 927.04 : x
  2. Step 2: Convert to fraction form
    3,391.96/5,087.98 = 927.04/x
  3. Step 3: Cross multiply
    3,391.96x = 5,087.98 × 927.04
  4. Step 4: Simplify right side
    3,391.96x = 4,716,760.98
  5. Step 5: Solve for x
    x = 4,716,760.98/3,391.96
  6. Step 6: Final answer
    x = 1,390.57

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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.