Home / 2,827.65-4,240.76-1,266.78

Finding the Fourth Proportional to 2,827.65, 4,240.76 and 1,266.78

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Solution

The fourth proportional to 2,827.65, 4,240.76 and 1,266.78 is: 1,899.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.65 : 4,240.76 = 1,266.78 : x
  2. Step 2: Convert to fraction form
    2,827.65/4,240.76 = 1,266.78/x
  3. Step 3: Cross multiply
    2,827.65x = 4,240.76 × 1,266.78
  4. Step 4: Simplify right side
    2,827.65x = 5,372,109.95
  5. Step 5: Solve for x
    x = 5,372,109.95/2,827.65
  6. Step 6: Final answer
    x = 1,899.85

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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.