Home / 3,942.52-5,913.70-1,020.75

Finding the Fourth Proportional to 3,942.52, 5,913.70 and 1,020.75

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Solution

The fourth proportional to 3,942.52, 5,913.70 and 1,020.75 is: 1,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.52 : 5,913.70 = 1,020.75 : x
  2. Step 2: Convert to fraction form
    3,942.52/5,913.70 = 1,020.75/x
  3. Step 3: Cross multiply
    3,942.52x = 5,913.70 × 1,020.75
  4. Step 4: Simplify right side
    3,942.52x = 6,036,388.37
  5. Step 5: Solve for x
    x = 6,036,388.37/3,942.52
  6. Step 6: Final answer
    x = 1,531.10

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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.