Home / 3,927.78-5,890.42-1,294.79

Finding the Fourth Proportional to 3,927.78, 5,890.42 and 1,294.79

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Solution

The fourth proportional to 3,927.78, 5,890.42 and 1,294.79 is: 1,941.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.78 : 5,890.42 = 1,294.79 : x
  2. Step 2: Convert to fraction form
    3,927.78/5,890.42 = 1,294.79/x
  3. Step 3: Cross multiply
    3,927.78x = 5,890.42 × 1,294.79
  4. Step 4: Simplify right side
    3,927.78x = 7,626,850.44
  5. Step 5: Solve for x
    x = 7,626,850.44/3,927.78
  6. Step 6: Final answer
    x = 1,941.77

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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.