Home / 1,181.26-1,630.29-683.92

Finding the Fourth Proportional to 1,181.26, 1,630.29 and 683.92

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Solution

The fourth proportional to 1,181.26, 1,630.29 and 683.92 is: 943.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181.26 : 1,630.29 = 683.92 : x
  2. Step 2: Convert to fraction form
    1,181.26/1,630.29 = 683.92/x
  3. Step 3: Cross multiply
    1,181.26x = 1,630.29 × 683.92
  4. Step 4: Simplify right side
    1,181.26x = 1,114,987.94
  5. Step 5: Solve for x
    x = 1,114,987.94/1,181.26
  6. Step 6: Final answer
    x = 943.90

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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.