Home / 3,985.25-5,977.88-1,646.58

Finding the Fourth Proportional to 3,985.25, 5,977.88 and 1,646.58

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Solution

The fourth proportional to 3,985.25, 5,977.88 and 1,646.58 is: 2,469.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.25 : 5,977.88 = 1,646.58 : x
  2. Step 2: Convert to fraction form
    3,985.25/5,977.88 = 1,646.58/x
  3. Step 3: Cross multiply
    3,985.25x = 5,977.88 × 1,646.58
  4. Step 4: Simplify right side
    3,985.25x = 9,843,049.42
  5. Step 5: Solve for x
    x = 9,843,049.42/3,985.25
  6. Step 6: Final answer
    x = 2,469.87

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.