Home / 3,049.25-4,205.79-1,985.06

Finding the Fourth Proportional to 3,049.25, 4,205.79 and 1,985.06

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Solution

The fourth proportional to 3,049.25, 4,205.79 and 1,985.06 is: 2,737.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,049.25 : 4,205.79 = 1,985.06 : x
  2. Step 2: Convert to fraction form
    3,049.25/4,205.79 = 1,985.06/x
  3. Step 3: Cross multiply
    3,049.25x = 4,205.79 × 1,985.06
  4. Step 4: Simplify right side
    3,049.25x = 8,348,756.01
  5. Step 5: Solve for x
    x = 8,348,756.01/3,049.25
  6. Step 6: Final answer
    x = 2,737.97

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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.