Home / 3,942.90-5,914.62-1,021.50

Finding the Fourth Proportional to 3,942.90, 5,914.62 and 1,021.50

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Solution

The fourth proportional to 3,942.90, 5,914.62 and 1,021.50 is: 1,532.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.90 : 5,914.62 = 1,021.50 : x
  2. Step 2: Convert to fraction form
    3,942.90/5,914.62 = 1,021.50/x
  3. Step 3: Cross multiply
    3,942.90x = 5,914.62 × 1,021.50
  4. Step 4: Simplify right side
    3,942.90x = 6,041,784.33
  5. Step 5: Solve for x
    x = 6,041,784.33/3,942.90
  6. Step 6: Final answer
    x = 1,532.32

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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.