Home / 3,281.51-4,919.82-1,982.67

Finding the Fourth Proportional to 3,281.51, 4,919.82 and 1,982.67

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Solution

The fourth proportional to 3,281.51, 4,919.82 and 1,982.67 is: 2,972.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.51 : 4,919.82 = 1,982.67 : x
  2. Step 2: Convert to fraction form
    3,281.51/4,919.82 = 1,982.67/x
  3. Step 3: Cross multiply
    3,281.51x = 4,919.82 × 1,982.67
  4. Step 4: Simplify right side
    3,281.51x = 9,754,379.52
  5. Step 5: Solve for x
    x = 9,754,379.52/3,281.51
  6. Step 6: Final answer
    x = 2,972.53

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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.