Home / 2,292.32-3,162.48-1,297.32

Finding the Fourth Proportional to 2,292.32, 3,162.48 and 1,297.32

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Solution

The fourth proportional to 2,292.32, 3,162.48 and 1,297.32 is: 1,789.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,292.32 : 3,162.48 = 1,297.32 : x
  2. Step 2: Convert to fraction form
    2,292.32/3,162.48 = 1,297.32/x
  3. Step 3: Cross multiply
    2,292.32x = 3,162.48 × 1,297.32
  4. Step 4: Simplify right side
    2,292.32x = 4,102,748.55
  5. Step 5: Solve for x
    x = 4,102,748.55/2,292.32
  6. Step 6: Final answer
    x = 1,789.78

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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.