Home / 3,211.50-4,818.16-1,238.04

Finding the Fourth Proportional to 3,211.50, 4,818.16 and 1,238.04

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Solution

The fourth proportional to 3,211.50, 4,818.16 and 1,238.04 is: 1,857.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.50 : 4,818.16 = 1,238.04 : x
  2. Step 2: Convert to fraction form
    3,211.50/4,818.16 = 1,238.04/x
  3. Step 3: Cross multiply
    3,211.50x = 4,818.16 × 1,238.04
  4. Step 4: Simplify right side
    3,211.50x = 5,965,074.81
  5. Step 5: Solve for x
    x = 5,965,074.81/3,211.50
  6. Step 6: Final answer
    x = 1,857.41

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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.