Home / 2,871.35-3,962.45-1,629.35

Finding the Fourth Proportional to 2,871.35, 3,962.45 and 1,629.35

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Solution

The fourth proportional to 2,871.35, 3,962.45 and 1,629.35 is: 2,248.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.35 : 3,962.45 = 1,629.35 : x
  2. Step 2: Convert to fraction form
    2,871.35/3,962.45 = 1,629.35/x
  3. Step 3: Cross multiply
    2,871.35x = 3,962.45 × 1,629.35
  4. Step 4: Simplify right side
    2,871.35x = 6,456,217.91
  5. Step 5: Solve for x
    x = 6,456,217.91/2,871.35
  6. Step 6: Final answer
    x = 2,248.50

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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.