Home / 2,388.80-3,297.30-1,394.48

Finding the Fourth Proportional to 2,388.80, 3,297.30 and 1,394.48

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Solution

The fourth proportional to 2,388.80, 3,297.30 and 1,394.48 is: 1,924.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.80 : 3,297.30 = 1,394.48 : x
  2. Step 2: Convert to fraction form
    2,388.80/3,297.30 = 1,394.48/x
  3. Step 3: Cross multiply
    2,388.80x = 3,297.30 × 1,394.48
  4. Step 4: Simplify right side
    2,388.80x = 4,598,018.90
  5. Step 5: Solve for x
    x = 4,598,018.90/2,388.80
  6. Step 6: Final answer
    x = 1,924.82

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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.