Home / 3,690.04-5,092.12-2,118.12

Finding the Fourth Proportional to 3,690.04, 5,092.12 and 2,118.12

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Solution

The fourth proportional to 3,690.04, 5,092.12 and 2,118.12 is: 2,922.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.04 : 5,092.12 = 2,118.12 : x
  2. Step 2: Convert to fraction form
    3,690.04/5,092.12 = 2,118.12/x
  3. Step 3: Cross multiply
    3,690.04x = 5,092.12 × 2,118.12
  4. Step 4: Simplify right side
    3,690.04x = 10,785,721.21
  5. Step 5: Solve for x
    x = 10,785,721.21/3,690.04
  6. Step 6: Final answer
    x = 2,922.93

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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.