Home / 3,160.80-4,743.45-1,212.99

Finding the Fourth Proportional to 3,160.80, 4,743.45 and 1,212.99

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Solution

The fourth proportional to 3,160.80, 4,743.45 and 1,212.99 is: 1,820.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.80 : 4,743.45 = 1,212.99 : x
  2. Step 2: Convert to fraction form
    3,160.80/4,743.45 = 1,212.99/x
  3. Step 3: Cross multiply
    3,160.80x = 4,743.45 × 1,212.99
  4. Step 4: Simplify right side
    3,160.80x = 5,753,757.42
  5. Step 5: Solve for x
    x = 5,753,757.42/3,160.80
  6. Step 6: Final answer
    x = 1,820.35

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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.