Home / 3,391-5,077.26-2,566.78

Finding the Fourth Proportional to 3,391, 5,077.26 and 2,566.78

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Solution

The fourth proportional to 3,391, 5,077.26 and 2,566.78 is: 3,843.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391 : 5,077.26 = 2,566.78 : x
  2. Step 2: Convert to fraction form
    3,391/5,077.26 = 2,566.78/x
  3. Step 3: Cross multiply
    3,391x = 5,077.26 × 2,566.78
  4. Step 4: Simplify right side
    3,391x = 13,032,209.42
  5. Step 5: Solve for x
    x = 13,032,209.42/3,391
  6. Step 6: Final answer
    x = 3,843.18

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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.