Home / 3,790.26-5,230.14-2,175.12

Finding the Fourth Proportional to 3,790.26, 5,230.14 and 2,175.12

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Solution

The fourth proportional to 3,790.26, 5,230.14 and 2,175.12 is: 3,001.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.26 : 5,230.14 = 2,175.12 : x
  2. Step 2: Convert to fraction form
    3,790.26/5,230.14 = 2,175.12/x
  3. Step 3: Cross multiply
    3,790.26x = 5,230.14 × 2,175.12
  4. Step 4: Simplify right side
    3,790.26x = 11,376,182.12
  5. Step 5: Solve for x
    x = 11,376,182.12/3,790.26
  6. Step 6: Final answer
    x = 3,001.43

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Half scale
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Double scale
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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.