Home / 2,871.56-3,962.82-1,629.56

Finding the Fourth Proportional to 2,871.56, 3,962.82 and 1,629.56

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Solution

The fourth proportional to 2,871.56, 3,962.82 and 1,629.56 is: 2,248.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.56 : 3,962.82 = 1,629.56 : x
  2. Step 2: Convert to fraction form
    2,871.56/3,962.82 = 1,629.56/x
  3. Step 3: Cross multiply
    2,871.56x = 3,962.82 × 1,629.56
  4. Step 4: Simplify right side
    2,871.56x = 6,457,652.96
  5. Step 5: Solve for x
    x = 6,457,652.96/2,871.56
  6. Step 6: Final answer
    x = 2,248.83

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1.5x scale

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.