Home / 3,300.32-4,949.95-1,221.31

Finding the Fourth Proportional to 3,300.32, 4,949.95 and 1,221.31

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Solution

The fourth proportional to 3,300.32, 4,949.95 and 1,221.31 is: 1,831.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,300.32 : 4,949.95 = 1,221.31 : x
  2. Step 2: Convert to fraction form
    3,300.32/4,949.95 = 1,221.31/x
  3. Step 3: Cross multiply
    3,300.32x = 4,949.95 × 1,221.31
  4. Step 4: Simplify right side
    3,300.32x = 6,045,423.43
  5. Step 5: Solve for x
    x = 6,045,423.43/3,300.32
  6. Step 6: Final answer
    x = 1,831.77

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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.