Home / 2,871.52-3,962.72-1,629.44

Finding the Fourth Proportional to 2,871.52, 3,962.72 and 1,629.44

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Solution

The fourth proportional to 2,871.52, 3,962.72 and 1,629.44 is: 2,248.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.52 : 3,962.72 = 1,629.44 : x
  2. Step 2: Convert to fraction form
    2,871.52/3,962.72 = 1,629.44/x
  3. Step 3: Cross multiply
    2,871.52x = 3,962.72 × 1,629.44
  4. Step 4: Simplify right side
    2,871.52x = 6,457,014.48
  5. Step 5: Solve for x
    x = 6,457,014.48/2,871.52
  6. Step 6: Final answer
    x = 2,248.64

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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.