Home / 3,309.86-4,963.93-1,228.70

Finding the Fourth Proportional to 3,309.86, 4,963.93 and 1,228.70

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Solution

The fourth proportional to 3,309.86, 4,963.93 and 1,228.70 is: 1,842.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309.86 : 4,963.93 = 1,228.70 : x
  2. Step 2: Convert to fraction form
    3,309.86/4,963.93 = 1,228.70/x
  3. Step 3: Cross multiply
    3,309.86x = 4,963.93 × 1,228.70
  4. Step 4: Simplify right side
    3,309.86x = 6,099,190.13
  5. Step 5: Solve for x
    x = 6,099,190.13/3,309.86
  6. Step 6: Final answer
    x = 1,842.73

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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.