Home / 2,175.14-3,001.66-1,230.91

Finding the Fourth Proportional to 2,175.14, 3,001.66 and 1,230.91

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Solution

The fourth proportional to 2,175.14, 3,001.66 and 1,230.91 is: 1,698.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.14 : 3,001.66 = 1,230.91 : x
  2. Step 2: Convert to fraction form
    2,175.14/3,001.66 = 1,230.91/x
  3. Step 3: Cross multiply
    2,175.14x = 3,001.66 × 1,230.91
  4. Step 4: Simplify right side
    2,175.14x = 3,694,773.31
  5. Step 5: Solve for x
    x = 3,694,773.31/2,175.14
  6. Step 6: Final answer
    x = 1,698.64

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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.