Home / 2,166.36-3,253.68-1,995.72

Finding the Fourth Proportional to 2,166.36, 3,253.68 and 1,995.72

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Solution

The fourth proportional to 2,166.36, 3,253.68 and 1,995.72 is: 2,997.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.36 : 3,253.68 = 1,995.72 : x
  2. Step 2: Convert to fraction form
    2,166.36/3,253.68 = 1,995.72/x
  3. Step 3: Cross multiply
    2,166.36x = 3,253.68 × 1,995.72
  4. Step 4: Simplify right side
    2,166.36x = 6,493,434.25
  5. Step 5: Solve for x
    x = 6,493,434.25/2,166.36
  6. Step 6: Final answer
    x = 2,997.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.