Home / 1,729.32-2,383.62-1,336.20

Finding the Fourth Proportional to 1,729.32, 2,383.62 and 1,336.20

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Solution

The fourth proportional to 1,729.32, 2,383.62 and 1,336.20 is: 1,841.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.32 : 2,383.62 = 1,336.20 : x
  2. Step 2: Convert to fraction form
    1,729.32/2,383.62 = 1,336.20/x
  3. Step 3: Cross multiply
    1,729.32x = 2,383.62 × 1,336.20
  4. Step 4: Simplify right side
    1,729.32x = 3,184,993.04
  5. Step 5: Solve for x
    x = 3,184,993.04/1,729.32
  6. Step 6: Final answer
    x = 1,841.76

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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.