Home / 1,180.33-1,629.12-683.13

Finding the Fourth Proportional to 1,180.33, 1,629.12 and 683.13

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Solution

The fourth proportional to 1,180.33, 1,629.12 and 683.13 is: 942.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180.33 : 1,629.12 = 683.13 : x
  2. Step 2: Convert to fraction form
    1,180.33/1,629.12 = 683.13/x
  3. Step 3: Cross multiply
    1,180.33x = 1,629.12 × 683.13
  4. Step 4: Simplify right side
    1,180.33x = 1,112,900.75
  5. Step 5: Solve for x
    x = 1,112,900.75/1,180.33
  6. Step 6: Final answer
    x = 942.87

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1.5x scale

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.