Home / 3,159.53-4,738.38-1,211.28

Finding the Fourth Proportional to 3,159.53, 4,738.38 and 1,211.28

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Solution

The fourth proportional to 3,159.53, 4,738.38 and 1,211.28 is: 1,816.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.53 : 4,738.38 = 1,211.28 : x
  2. Step 2: Convert to fraction form
    3,159.53/4,738.38 = 1,211.28/x
  3. Step 3: Cross multiply
    3,159.53x = 4,738.38 × 1,211.28
  4. Step 4: Simplify right side
    3,159.53x = 5,739,504.93
  5. Step 5: Solve for x
    x = 5,739,504.93/3,159.53
  6. Step 6: Final answer
    x = 1,816.57

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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.