Home / 1,727.46-2,383.20-1,203.80

Finding the Fourth Proportional to 1,727.46, 2,383.20 and 1,203.80

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Solution

The fourth proportional to 1,727.46, 2,383.20 and 1,203.80 is: 1,660.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.46 : 2,383.20 = 1,203.80 : x
  2. Step 2: Convert to fraction form
    1,727.46/2,383.20 = 1,203.80/x
  3. Step 3: Cross multiply
    1,727.46x = 2,383.20 × 1,203.80
  4. Step 4: Simplify right side
    1,727.46x = 2,868,884.24
  5. Step 5: Solve for x
    x = 2,868,884.24/1,727.46
  6. Step 6: Final answer
    x = 1,660.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.