Home / 2,175-3,001.46-1,180.25

Finding the Fourth Proportional to 2,175, 3,001.46 and 1,180.25

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Solution

The fourth proportional to 2,175, 3,001.46 and 1,180.25 is: 1,628.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175 : 3,001.46 = 1,180.25 : x
  2. Step 2: Convert to fraction form
    2,175/3,001.46 = 1,180.25/x
  3. Step 3: Cross multiply
    2,175x = 3,001.46 × 1,180.25
  4. Step 4: Simplify right side
    2,175x = 3,542,473.17
  5. Step 5: Solve for x
    x = 3,542,473.17/2,175
  6. Step 6: Final answer
    x = 1,628.72

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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.