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Finding the Fourth Proportional to 1,933.80, 2,902.11 and 960.18

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Solution

The fourth proportional to 1,933.80, 2,902.11 and 960.18 is: 1,440.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.80 : 2,902.11 = 960.18 : x
  2. Step 2: Convert to fraction form
    1,933.80/2,902.11 = 960.18/x
  3. Step 3: Cross multiply
    1,933.80x = 2,902.11 × 960.18
  4. Step 4: Simplify right side
    1,933.80x = 2,786,547.98
  5. Step 5: Solve for x
    x = 2,786,547.98/1,933.80
  6. Step 6: Final answer
    x = 1,440.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.