Home / 1,371.92-2,059.38-1,021.79

Finding the Fourth Proportional to 1,371.92, 2,059.38 and 1,021.79

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Solution

The fourth proportional to 1,371.92, 2,059.38 and 1,021.79 is: 1,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371.92 : 2,059.38 = 1,021.79 : x
  2. Step 2: Convert to fraction form
    1,371.92/2,059.38 = 1,021.79/x
  3. Step 3: Cross multiply
    1,371.92x = 2,059.38 × 1,021.79
  4. Step 4: Simplify right side
    1,371.92x = 2,104,243.59
  5. Step 5: Solve for x
    x = 2,104,243.59/1,371.92
  6. Step 6: Final answer
    x = 1,533.80

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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.