Home / 2,871.50-3,962.67-1,629.50

Finding the Fourth Proportional to 2,871.50, 3,962.67 and 1,629.50

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Solution

The fourth proportional to 2,871.50, 3,962.67 and 1,629.50 is: 2,248.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.50 : 3,962.67 = 1,629.50 : x
  2. Step 2: Convert to fraction form
    2,871.50/3,962.67 = 1,629.50/x
  3. Step 3: Cross multiply
    2,871.50x = 3,962.67 × 1,629.50
  4. Step 4: Simplify right side
    2,871.50x = 6,457,170.77
  5. Step 5: Solve for x
    x = 6,457,170.77/2,871.50
  6. Step 6: Final answer
    x = 2,248.71

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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.