Home / 2,679.36-3,697.44-1,734.72

Finding the Fourth Proportional to 2,679.36, 3,697.44 and 1,734.72

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Solution

The fourth proportional to 2,679.36, 3,697.44 and 1,734.72 is: 2,393.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.36 : 3,697.44 = 1,734.72 : x
  2. Step 2: Convert to fraction form
    2,679.36/3,697.44 = 1,734.72/x
  3. Step 3: Cross multiply
    2,679.36x = 3,697.44 × 1,734.72
  4. Step 4: Simplify right side
    2,679.36x = 6,414,023.12
  5. Step 5: Solve for x
    x = 6,414,023.12/2,679.36
  6. Step 6: Final answer
    x = 2,393.86

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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.