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Finding the Fourth Proportional to 5,122.72, 7,101.94 and 4,942.54

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Solution

The fourth proportional to 5,122.72, 7,101.94 and 4,942.54 is: 6,852.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.72 : 7,101.94 = 4,942.54 : x
  2. Step 2: Convert to fraction form
    5,122.72/7,101.94 = 4,942.54/x
  3. Step 3: Cross multiply
    5,122.72x = 7,101.94 × 4,942.54
  4. Step 4: Simplify right side
    5,122.72x = 35,101,622.53
  5. Step 5: Solve for x
    x = 35,101,622.53/5,122.72
  6. Step 6: Final answer
    x = 6,852.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.