Home / 3,815.96-5,721.02-2,642.59

Finding the Fourth Proportional to 3,815.96, 5,721.02 and 2,642.59

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Solution

The fourth proportional to 3,815.96, 5,721.02 and 2,642.59 is: 3,961.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.96 : 5,721.02 = 2,642.59 : x
  2. Step 2: Convert to fraction form
    3,815.96/5,721.02 = 2,642.59/x
  3. Step 3: Cross multiply
    3,815.96x = 5,721.02 × 2,642.59
  4. Step 4: Simplify right side
    3,815.96x = 15,118,268.42
  5. Step 5: Solve for x
    x = 15,118,268.42/3,815.96
  6. Step 6: Final answer
    x = 3,961.86

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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.