Home / 1,297.58-1,943.75-1,229.43

Finding the Fourth Proportional to 1,297.58, 1,943.75 and 1,229.43

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Solution

The fourth proportional to 1,297.58, 1,943.75 and 1,229.43 is: 1,841.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297.58 : 1,943.75 = 1,229.43 : x
  2. Step 2: Convert to fraction form
    1,297.58/1,943.75 = 1,229.43/x
  3. Step 3: Cross multiply
    1,297.58x = 1,943.75 × 1,229.43
  4. Step 4: Simplify right side
    1,297.58x = 2,389,698.42
  5. Step 5: Solve for x
    x = 2,389,698.42/1,297.58
  6. Step 6: Final answer
    x = 1,841.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.