Home / 3,005.77-4,146.75-1,997.97

Finding the Fourth Proportional to 3,005.77, 4,146.75 and 1,997.97

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Solution

The fourth proportional to 3,005.77, 4,146.75 and 1,997.97 is: 2,756.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.77 : 4,146.75 = 1,997.97 : x
  2. Step 2: Convert to fraction form
    3,005.77/4,146.75 = 1,997.97/x
  3. Step 3: Cross multiply
    3,005.77x = 4,146.75 × 1,997.97
  4. Step 4: Simplify right side
    3,005.77x = 8,285,066.55
  5. Step 5: Solve for x
    x = 8,285,066.55/3,005.77
  6. Step 6: Final answer
    x = 2,756.39

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1.5x scale

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.