Home / 1,960.47-2,705.13-1,121.04

Finding the Fourth Proportional to 1,960.47, 2,705.13 and 1,121.04

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Solution

The fourth proportional to 1,960.47, 2,705.13 and 1,121.04 is: 1,546.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.47 : 2,705.13 = 1,121.04 : x
  2. Step 2: Convert to fraction form
    1,960.47/2,705.13 = 1,121.04/x
  3. Step 3: Cross multiply
    1,960.47x = 2,705.13 × 1,121.04
  4. Step 4: Simplify right side
    1,960.47x = 3,032,558.94
  5. Step 5: Solve for x
    x = 3,032,558.94/1,960.47
  6. Step 6: Final answer
    x = 1,546.85

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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.