Home / 1,932.13-2,902.81-1,240.14

Finding the Fourth Proportional to 1,932.13, 2,902.81 and 1,240.14

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Solution

The fourth proportional to 1,932.13, 2,902.81 and 1,240.14 is: 1,863.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932.13 : 2,902.81 = 1,240.14 : x
  2. Step 2: Convert to fraction form
    1,932.13/2,902.81 = 1,240.14/x
  3. Step 3: Cross multiply
    1,932.13x = 2,902.81 × 1,240.14
  4. Step 4: Simplify right side
    1,932.13x = 3,599,890.79
  5. Step 5: Solve for x
    x = 3,599,890.79/1,932.13
  6. Step 6: Final answer
    x = 1,863.17

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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.