Home / 3,081.40-4,611.30-2,152.60

Finding the Fourth Proportional to 3,081.40, 4,611.30 and 2,152.60

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Solution

The fourth proportional to 3,081.40, 4,611.30 and 2,152.60 is: 3,221.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.40 : 4,611.30 = 2,152.60 : x
  2. Step 2: Convert to fraction form
    3,081.40/4,611.30 = 2,152.60/x
  3. Step 3: Cross multiply
    3,081.40x = 4,611.30 × 2,152.60
  4. Step 4: Simplify right side
    3,081.40x = 9,926,284.38
  5. Step 5: Solve for x
    x = 9,926,284.38/3,081.40
  6. Step 6: Final answer
    x = 3,221.36

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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.