Home / 3,628.54-5,010.21-2,787.94

Finding the Fourth Proportional to 3,628.54, 5,010.21 and 2,787.94

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Solution

The fourth proportional to 3,628.54, 5,010.21 and 2,787.94 is: 3,849.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,628.54 : 5,010.21 = 2,787.94 : x
  2. Step 2: Convert to fraction form
    3,628.54/5,010.21 = 2,787.94/x
  3. Step 3: Cross multiply
    3,628.54x = 5,010.21 × 2,787.94
  4. Step 4: Simplify right side
    3,628.54x = 13,968,164.87
  5. Step 5: Solve for x
    x = 13,968,164.87/3,628.54
  6. Step 6: Final answer
    x = 3,849.53

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1.5x scale

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.