Home / 1,960.18-2,705.03-1,121.14

Finding the Fourth Proportional to 1,960.18, 2,705.03 and 1,121.14

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Solution

The fourth proportional to 1,960.18, 2,705.03 and 1,121.14 is: 1,547.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.18 : 2,705.03 = 1,121.14 : x
  2. Step 2: Convert to fraction form
    1,960.18/2,705.03 = 1,121.14/x
  3. Step 3: Cross multiply
    1,960.18x = 2,705.03 × 1,121.14
  4. Step 4: Simplify right side
    1,960.18x = 3,032,717.33
  5. Step 5: Solve for x
    x = 3,032,717.33/1,960.18
  6. Step 6: Final answer
    x = 1,547.16

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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.