Home / 2,725.24-4,087.89-777.44

Finding the Fourth Proportional to 2,725.24, 4,087.89 and 777.44

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Solution

The fourth proportional to 2,725.24, 4,087.89 and 777.44 is: 1,166.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.24 : 4,087.89 = 777.44 : x
  2. Step 2: Convert to fraction form
    2,725.24/4,087.89 = 777.44/x
  3. Step 3: Cross multiply
    2,725.24x = 4,087.89 × 777.44
  4. Step 4: Simplify right side
    2,725.24x = 3,178,078.98
  5. Step 5: Solve for x
    x = 3,178,078.98/2,725.24
  6. Step 6: Final answer
    x = 1,166.17

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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.