Home / 1,906.15-2,861.03-982.35

Finding the Fourth Proportional to 1,906.15, 2,861.03 and 982.35

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Solution

The fourth proportional to 1,906.15, 2,861.03 and 982.35 is: 1,474.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.15 : 2,861.03 = 982.35 : x
  2. Step 2: Convert to fraction form
    1,906.15/2,861.03 = 982.35/x
  3. Step 3: Cross multiply
    1,906.15x = 2,861.03 × 982.35
  4. Step 4: Simplify right side
    1,906.15x = 2,810,524.55
  5. Step 5: Solve for x
    x = 2,810,524.55/1,906.15
  6. Step 6: Final answer
    x = 1,474.45

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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.