Home / 2,871.54-3,961.71-1,629.54

Finding the Fourth Proportional to 2,871.54, 3,961.71 and 1,629.54

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Solution

The fourth proportional to 2,871.54, 3,961.71 and 1,629.54 is: 2,248.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.54 : 3,961.71 = 1,629.54 : x
  2. Step 2: Convert to fraction form
    2,871.54/3,961.71 = 1,629.54/x
  3. Step 3: Cross multiply
    2,871.54x = 3,961.71 × 1,629.54
  4. Step 4: Simplify right side
    2,871.54x = 6,455,764.91
  5. Step 5: Solve for x
    x = 6,455,764.91/2,871.54
  6. Step 6: Final answer
    x = 2,248.19

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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.