Home / 1,749.22-2,627.43-1,690.90

Finding the Fourth Proportional to 1,749.22, 2,627.43 and 1,690.90

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Solution

The fourth proportional to 1,749.22, 2,627.43 and 1,690.90 is: 2,539.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749.22 : 2,627.43 = 1,690.90 : x
  2. Step 2: Convert to fraction form
    1,749.22/2,627.43 = 1,690.90/x
  3. Step 3: Cross multiply
    1,749.22x = 2,627.43 × 1,690.90
  4. Step 4: Simplify right side
    1,749.22x = 4,442,721.39
  5. Step 5: Solve for x
    x = 4,442,721.39/1,749.22
  6. Step 6: Final answer
    x = 2,539.83

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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.