Home / 1,816.83-2,722.41-1,231.20

Finding the Fourth Proportional to 1,816.83, 2,722.41 and 1,231.20

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Solution

The fourth proportional to 1,816.83, 2,722.41 and 1,231.20 is: 1,844.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.83 : 2,722.41 = 1,231.20 : x
  2. Step 2: Convert to fraction form
    1,816.83/2,722.41 = 1,231.20/x
  3. Step 3: Cross multiply
    1,816.83x = 2,722.41 × 1,231.20
  4. Step 4: Simplify right side
    1,816.83x = 3,351,831.19
  5. Step 5: Solve for x
    x = 3,351,831.19/1,816.83
  6. Step 6: Final answer
    x = 1,844.88

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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.