Home / 2,772.65-3,826.90-1,828.61

Finding the Fourth Proportional to 2,772.65, 3,826.90 and 1,828.61

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Solution

The fourth proportional to 2,772.65, 3,826.90 and 1,828.61 is: 2,523.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.65 : 3,826.90 = 1,828.61 : x
  2. Step 2: Convert to fraction form
    2,772.65/3,826.90 = 1,828.61/x
  3. Step 3: Cross multiply
    2,772.65x = 3,826.90 × 1,828.61
  4. Step 4: Simplify right side
    2,772.65x = 6,997,907.61
  5. Step 5: Solve for x
    x = 6,997,907.61/2,772.65
  6. Step 6: Final answer
    x = 2,523.91

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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.