Home / 1,943.91-2,683.13-1,197.90

Finding the Fourth Proportional to 1,943.91, 2,683.13 and 1,197.90

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Solution

The fourth proportional to 1,943.91, 2,683.13 and 1,197.90 is: 1,653.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.91 : 2,683.13 = 1,197.90 : x
  2. Step 2: Convert to fraction form
    1,943.91/2,683.13 = 1,197.90/x
  3. Step 3: Cross multiply
    1,943.91x = 2,683.13 × 1,197.90
  4. Step 4: Simplify right side
    1,943.91x = 3,214,115.44
  5. Step 5: Solve for x
    x = 3,214,115.44/1,943.91
  6. Step 6: Final answer
    x = 1,653.43

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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.