Home / 2,992.12-4,129.08-1,665.82

Finding the Fourth Proportional to 2,992.12, 4,129.08 and 1,665.82

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Solution

The fourth proportional to 2,992.12, 4,129.08 and 1,665.82 is: 2,298.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.12 : 4,129.08 = 1,665.82 : x
  2. Step 2: Convert to fraction form
    2,992.12/4,129.08 = 1,665.82/x
  3. Step 3: Cross multiply
    2,992.12x = 4,129.08 × 1,665.82
  4. Step 4: Simplify right side
    2,992.12x = 6,878,304.05
  5. Step 5: Solve for x
    x = 6,878,304.05/2,992.12
  6. Step 6: Final answer
    x = 2,298.81

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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.