Home / 1,942.19-2,680.21-1,057.99

Finding the Fourth Proportional to 1,942.19, 2,680.21 and 1,057.99

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Solution

The fourth proportional to 1,942.19, 2,680.21 and 1,057.99 is: 1,460.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.19 : 2,680.21 = 1,057.99 : x
  2. Step 2: Convert to fraction form
    1,942.19/2,680.21 = 1,057.99/x
  3. Step 3: Cross multiply
    1,942.19x = 2,680.21 × 1,057.99
  4. Step 4: Simplify right side
    1,942.19x = 2,835,624.97
  5. Step 5: Solve for x
    x = 2,835,624.97/1,942.19
  6. Step 6: Final answer
    x = 1,460.02

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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.