Home / 2,629.64-3,944.45-1,805.40

Finding the Fourth Proportional to 2,629.64, 3,944.45 and 1,805.40

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Solution

The fourth proportional to 2,629.64, 3,944.45 and 1,805.40 is: 2,708.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.64 : 3,944.45 = 1,805.40 : x
  2. Step 2: Convert to fraction form
    2,629.64/3,944.45 = 1,805.40/x
  3. Step 3: Cross multiply
    2,629.64x = 3,944.45 × 1,805.40
  4. Step 4: Simplify right side
    2,629.64x = 7,121,301.00
  5. Step 5: Solve for x
    x = 7,121,301.00/2,629.64
  6. Step 6: Final answer
    x = 2,708.09

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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.