Home / 3,209.88-4,818.66-1,911.96

Finding the Fourth Proportional to 3,209.88, 4,818.66 and 1,911.96

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Solution

The fourth proportional to 3,209.88, 4,818.66 and 1,911.96 is: 2,870.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.88 : 4,818.66 = 1,911.96 : x
  2. Step 2: Convert to fraction form
    3,209.88/4,818.66 = 1,911.96/x
  3. Step 3: Cross multiply
    3,209.88x = 4,818.66 × 1,911.96
  4. Step 4: Simplify right side
    3,209.88x = 9,213,085.17
  5. Step 5: Solve for x
    x = 9,213,085.17/3,209.88
  6. Step 6: Final answer
    x = 2,870.23

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.