Home / 2,992.39-4,129.15-1,665.91

Finding the Fourth Proportional to 2,992.39, 4,129.15 and 1,665.91

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Solution

The fourth proportional to 2,992.39, 4,129.15 and 1,665.91 is: 2,298.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.39 : 4,129.15 = 1,665.91 : x
  2. Step 2: Convert to fraction form
    2,992.39/4,129.15 = 1,665.91/x
  3. Step 3: Cross multiply
    2,992.39x = 4,129.15 × 1,665.91
  4. Step 4: Simplify right side
    2,992.39x = 6,878,792.28
  5. Step 5: Solve for x
    x = 6,878,792.28/2,992.39
  6. Step 6: Final answer
    x = 2,298.76

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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.