Home / 1,181.20-1,630.13-683.97

Finding the Fourth Proportional to 1,181.20, 1,630.13 and 683.97

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Solution

The fourth proportional to 1,181.20, 1,630.13 and 683.97 is: 943.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181.20 : 1,630.13 = 683.97 : x
  2. Step 2: Convert to fraction form
    1,181.20/1,630.13 = 683.97/x
  3. Step 3: Cross multiply
    1,181.20x = 1,630.13 × 683.97
  4. Step 4: Simplify right side
    1,181.20x = 1,114,960.02
  5. Step 5: Solve for x
    x = 1,114,960.02/1,181.20
  6. Step 6: Final answer
    x = 943.92

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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.