Home / 2,989.96-4,487.01-1,236.54

Finding the Fourth Proportional to 2,989.96, 4,487.01 and 1,236.54

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Solution

The fourth proportional to 2,989.96, 4,487.01 and 1,236.54 is: 1,855.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.96 : 4,487.01 = 1,236.54 : x
  2. Step 2: Convert to fraction form
    2,989.96/4,487.01 = 1,236.54/x
  3. Step 3: Cross multiply
    2,989.96x = 4,487.01 × 1,236.54
  4. Step 4: Simplify right side
    2,989.96x = 5,548,367.35
  5. Step 5: Solve for x
    x = 5,548,367.35/2,989.96
  6. Step 6: Final answer
    x = 1,855.67

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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.