Home / 5,135.80-7,087.41-2,777.94

Finding the Fourth Proportional to 5,135.80, 7,087.41 and 2,777.94

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Solution

The fourth proportional to 5,135.80, 7,087.41 and 2,777.94 is: 3,833.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.80 : 7,087.41 = 2,777.94 : x
  2. Step 2: Convert to fraction form
    5,135.80/7,087.41 = 2,777.94/x
  3. Step 3: Cross multiply
    5,135.80x = 7,087.41 × 2,777.94
  4. Step 4: Simplify right side
    5,135.80x = 19,688,399.74
  5. Step 5: Solve for x
    x = 19,688,399.74/5,135.80
  6. Step 6: Final answer
    x = 3,833.56

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Why These Related Problems?

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