Home / 2,679.25-3,697.38-1,747.75

Finding the Fourth Proportional to 2,679.25, 3,697.38 and 1,747.75

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Solution

The fourth proportional to 2,679.25, 3,697.38 and 1,747.75 is: 2,411.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.25 : 3,697.38 = 1,747.75 : x
  2. Step 2: Convert to fraction form
    2,679.25/3,697.38 = 1,747.75/x
  3. Step 3: Cross multiply
    2,679.25x = 3,697.38 × 1,747.75
  4. Step 4: Simplify right side
    2,679.25x = 6,462,095.90
  5. Step 5: Solve for x
    x = 6,462,095.90/2,679.25
  6. Step 6: Final answer
    x = 2,411.90

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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.