Home / 2,787.01-4,177.98-1,305.65

Finding the Fourth Proportional to 2,787.01, 4,177.98 and 1,305.65

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Solution

The fourth proportional to 2,787.01, 4,177.98 and 1,305.65 is: 1,957.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.01 : 4,177.98 = 1,305.65 : x
  2. Step 2: Convert to fraction form
    2,787.01/4,177.98 = 1,305.65/x
  3. Step 3: Cross multiply
    2,787.01x = 4,177.98 × 1,305.65
  4. Step 4: Simplify right side
    2,787.01x = 5,454,990.03
  5. Step 5: Solve for x
    x = 5,454,990.03/2,787.01
  6. Step 6: Final answer
    x = 1,957.29

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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.