Home / 1,960.35-2,705.25-1,121.01

Finding the Fourth Proportional to 1,960.35, 2,705.25 and 1,121.01

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Solution

The fourth proportional to 1,960.35, 2,705.25 and 1,121.01 is: 1,546.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.35 : 2,705.25 = 1,121.01 : x
  2. Step 2: Convert to fraction form
    1,960.35/2,705.25 = 1,121.01/x
  3. Step 3: Cross multiply
    1,960.35x = 2,705.25 × 1,121.01
  4. Step 4: Simplify right side
    1,960.35x = 3,032,612.30
  5. Step 5: Solve for x
    x = 3,032,612.30/1,960.35
  6. Step 6: Final answer
    x = 1,546.97

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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.