Home / 3,329.05-4,990.19-2,159.80

Finding the Fourth Proportional to 3,329.05, 4,990.19 and 2,159.80

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Solution

The fourth proportional to 3,329.05, 4,990.19 and 2,159.80 is: 3,237.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,329.05 : 4,990.19 = 2,159.80 : x
  2. Step 2: Convert to fraction form
    3,329.05/4,990.19 = 2,159.80/x
  3. Step 3: Cross multiply
    3,329.05x = 4,990.19 × 2,159.80
  4. Step 4: Simplify right side
    3,329.05x = 10,777,831.40
  5. Step 5: Solve for x
    x = 10,777,831.40/3,329.05
  6. Step 6: Final answer
    x = 3,237.51

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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.