Home / 2,389.97-3,297.45-1,394.66

Finding the Fourth Proportional to 2,389.97, 3,297.45 and 1,394.66

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Solution

The fourth proportional to 2,389.97, 3,297.45 and 1,394.66 is: 1,924.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.97 : 3,297.45 = 1,394.66 : x
  2. Step 2: Convert to fraction form
    2,389.97/3,297.45 = 1,394.66/x
  3. Step 3: Cross multiply
    2,389.97x = 3,297.45 × 1,394.66
  4. Step 4: Simplify right side
    2,389.97x = 4,598,805.13
  5. Step 5: Solve for x
    x = 4,598,805.13/2,389.97
  6. Step 6: Final answer
    x = 1,924.21

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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.