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Finding the Fourth Proportional to 3,395.72, 5,093.44 and 930.79

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Solution

The fourth proportional to 3,395.72, 5,093.44 and 930.79 is: 1,396.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.72 : 5,093.44 = 930.79 : x
  2. Step 2: Convert to fraction form
    3,395.72/5,093.44 = 930.79/x
  3. Step 3: Cross multiply
    3,395.72x = 5,093.44 × 930.79
  4. Step 4: Simplify right side
    3,395.72x = 4,740,923.02
  5. Step 5: Solve for x
    x = 4,740,923.02/3,395.72
  6. Step 6: Final answer
    x = 1,396.15

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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.