Home / 5,140.43-7,093.78-2,782.56

Finding the Fourth Proportional to 5,140.43, 7,093.78 and 2,782.56

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Solution

The fourth proportional to 5,140.43, 7,093.78 and 2,782.56 is: 3,839.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.43 : 7,093.78 = 2,782.56 : x
  2. Step 2: Convert to fraction form
    5,140.43/7,093.78 = 2,782.56/x
  3. Step 3: Cross multiply
    5,140.43x = 7,093.78 × 2,782.56
  4. Step 4: Simplify right side
    5,140.43x = 19,738,868.48
  5. Step 5: Solve for x
    x = 19,738,868.48/5,140.43
  6. Step 6: Final answer
    x = 3,839.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.