Home / 3,169.30-4,756.20-1,221.49

Finding the Fourth Proportional to 3,169.30, 4,756.20 and 1,221.49

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Solution

The fourth proportional to 3,169.30, 4,756.20 and 1,221.49 is: 1,833.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.30 : 4,756.20 = 1,221.49 : x
  2. Step 2: Convert to fraction form
    3,169.30/4,756.20 = 1,221.49/x
  3. Step 3: Cross multiply
    3,169.30x = 4,756.20 × 1,221.49
  4. Step 4: Simplify right side
    3,169.30x = 5,809,650.74
  5. Step 5: Solve for x
    x = 5,809,650.74/3,169.30
  6. Step 6: Final answer
    x = 1,833.10

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1.5x scale

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.