Home / 3,159.18-4,739.45-1,211.94

Finding the Fourth Proportional to 3,159.18, 4,739.45 and 1,211.94

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Solution

The fourth proportional to 3,159.18, 4,739.45 and 1,211.94 is: 1,818.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.18 : 4,739.45 = 1,211.94 : x
  2. Step 2: Convert to fraction form
    3,159.18/4,739.45 = 1,211.94/x
  3. Step 3: Cross multiply
    3,159.18x = 4,739.45 × 1,211.94
  4. Step 4: Simplify right side
    3,159.18x = 5,743,922.97
  5. Step 5: Solve for x
    x = 5,743,922.97/3,159.18
  6. Step 6: Final answer
    x = 1,818.17

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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.