Home / 1,788.06-2,687.52-1,749.78

Finding the Fourth Proportional to 1,788.06, 2,687.52 and 1,749.78

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Solution

The fourth proportional to 1,788.06, 2,687.52 and 1,749.78 is: 2,629.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.06 : 2,687.52 = 1,749.78 : x
  2. Step 2: Convert to fraction form
    1,788.06/2,687.52 = 1,749.78/x
  3. Step 3: Cross multiply
    1,788.06x = 2,687.52 × 1,749.78
  4. Step 4: Simplify right side
    1,788.06x = 4,702,568.75
  5. Step 5: Solve for x
    x = 4,702,568.75/1,788.06
  6. Step 6: Final answer
    x = 2,629.98

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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.