Home / 1,960.70-2,938.54-1,371.13

Finding the Fourth Proportional to 1,960.70, 2,938.54 and 1,371.13

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Solution

The fourth proportional to 1,960.70, 2,938.54 and 1,371.13 is: 2,054.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.70 : 2,938.54 = 1,371.13 : x
  2. Step 2: Convert to fraction form
    1,960.70/2,938.54 = 1,371.13/x
  3. Step 3: Cross multiply
    1,960.70x = 2,938.54 × 1,371.13
  4. Step 4: Simplify right side
    1,960.70x = 4,029,120.35
  5. Step 5: Solve for x
    x = 4,029,120.35/1,960.70
  6. Step 6: Final answer
    x = 2,054.94

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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.