Home / 2,175.08-3,001.42-1,230.83

Finding the Fourth Proportional to 2,175.08, 3,001.42 and 1,230.83

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Solution

The fourth proportional to 2,175.08, 3,001.42 and 1,230.83 is: 1,698.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.08 : 3,001.42 = 1,230.83 : x
  2. Step 2: Convert to fraction form
    2,175.08/3,001.42 = 1,230.83/x
  3. Step 3: Cross multiply
    2,175.08x = 3,001.42 × 1,230.83
  4. Step 4: Simplify right side
    2,175.08x = 3,694,237.78
  5. Step 5: Solve for x
    x = 3,694,237.78/2,175.08
  6. Step 6: Final answer
    x = 1,698.44

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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.