Home / 2,824.11-4,236.22-1,987.75

Finding the Fourth Proportional to 2,824.11, 4,236.22 and 1,987.75

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Solution

The fourth proportional to 2,824.11, 4,236.22 and 1,987.75 is: 2,981.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,824.11 : 4,236.22 = 1,987.75 : x
  2. Step 2: Convert to fraction form
    2,824.11/4,236.22 = 1,987.75/x
  3. Step 3: Cross multiply
    2,824.11x = 4,236.22 × 1,987.75
  4. Step 4: Simplify right side
    2,824.11x = 8,420,554.08
  5. Step 5: Solve for x
    x = 8,420,554.08/2,824.11
  6. Step 6: Final answer
    x = 2,981.67

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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.