Home / 3,211.44-4,812.63-1,521.04

Finding the Fourth Proportional to 3,211.44, 4,812.63 and 1,521.04

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Solution

The fourth proportional to 3,211.44, 4,812.63 and 1,521.04 is: 2,279.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.44 : 4,812.63 = 1,521.04 : x
  2. Step 2: Convert to fraction form
    3,211.44/4,812.63 = 1,521.04/x
  3. Step 3: Cross multiply
    3,211.44x = 4,812.63 × 1,521.04
  4. Step 4: Simplify right side
    3,211.44x = 7,320,216.67
  5. Step 5: Solve for x
    x = 7,320,216.67/3,211.44
  6. Step 6: Final answer
    x = 2,279.42

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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.