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Finding the Fourth Proportional to 1,641.67, 2,265.16 and 960.17

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Solution

The fourth proportional to 1,641.67, 2,265.16 and 960.17 is: 1,324.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,641.67 : 2,265.16 = 960.17 : x
  2. Step 2: Convert to fraction form
    1,641.67/2,265.16 = 960.17/x
  3. Step 3: Cross multiply
    1,641.67x = 2,265.16 × 960.17
  4. Step 4: Simplify right side
    1,641.67x = 2,174,942.19
  5. Step 5: Solve for x
    x = 2,174,942.19/1,641.67
  6. Step 6: Final answer
    x = 1,324.84

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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.