Home / 1,297.38-1,946.13-1,103.73

Finding the Fourth Proportional to 1,297.38, 1,946.13 and 1,103.73

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Solution

The fourth proportional to 1,297.38, 1,946.13 and 1,103.73 is: 1,655.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297.38 : 1,946.13 = 1,103.73 : x
  2. Step 2: Convert to fraction form
    1,297.38/1,946.13 = 1,103.73/x
  3. Step 3: Cross multiply
    1,297.38x = 1,946.13 × 1,103.73
  4. Step 4: Simplify right side
    1,297.38x = 2,147,990.63
  5. Step 5: Solve for x
    x = 2,147,990.63/1,297.38
  6. Step 6: Final answer
    x = 1,655.63

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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.