Home / 2,871.44-3,961.86-1,612.53

Finding the Fourth Proportional to 2,871.44, 3,961.86 and 1,612.53

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Solution

The fourth proportional to 2,871.44, 3,961.86 and 1,612.53 is: 2,224.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.44 : 3,961.86 = 1,612.53 : x
  2. Step 2: Convert to fraction form
    2,871.44/3,961.86 = 1,612.53/x
  3. Step 3: Cross multiply
    2,871.44x = 3,961.86 × 1,612.53
  4. Step 4: Simplify right side
    2,871.44x = 6,388,618.11
  5. Step 5: Solve for x
    x = 6,388,618.11/2,871.44
  6. Step 6: Final answer
    x = 2,224.89

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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.