Home / 3,080.61-4,249.35-2,086.11

Finding the Fourth Proportional to 3,080.61, 4,249.35 and 2,086.11

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Solution

The fourth proportional to 3,080.61, 4,249.35 and 2,086.11 is: 2,877.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.61 : 4,249.35 = 2,086.11 : x
  2. Step 2: Convert to fraction form
    3,080.61/4,249.35 = 2,086.11/x
  3. Step 3: Cross multiply
    3,080.61x = 4,249.35 × 2,086.11
  4. Step 4: Simplify right side
    3,080.61x = 8,864,611.53
  5. Step 5: Solve for x
    x = 8,864,611.53/3,080.61
  6. Step 6: Final answer
    x = 2,877.55

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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.