Home / 2,725.04-4,086.84-777.36

Finding the Fourth Proportional to 2,725.04, 4,086.84 and 777.36

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Solution

The fourth proportional to 2,725.04, 4,086.84 and 777.36 is: 1,165.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.04 : 4,086.84 = 777.36 : x
  2. Step 2: Convert to fraction form
    2,725.04/4,086.84 = 777.36/x
  3. Step 3: Cross multiply
    2,725.04x = 4,086.84 × 777.36
  4. Step 4: Simplify right side
    2,725.04x = 3,176,945.94
  5. Step 5: Solve for x
    x = 3,176,945.94/2,725.04
  6. Step 6: Final answer
    x = 1,165.83

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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.