Home / 2,787.03-4,189.66-2,765.16

Finding the Fourth Proportional to 2,787.03, 4,189.66 and 2,765.16

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Solution

The fourth proportional to 2,787.03, 4,189.66 and 2,765.16 is: 4,156.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.03 : 4,189.66 = 2,765.16 : x
  2. Step 2: Convert to fraction form
    2,787.03/4,189.66 = 2,765.16/x
  3. Step 3: Cross multiply
    2,787.03x = 4,189.66 × 2,765.16
  4. Step 4: Simplify right side
    2,787.03x = 11,585,073.33
  5. Step 5: Solve for x
    x = 11,585,073.33/2,787.03
  6. Step 6: Final answer
    x = 4,156.78

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1.5x scale

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.