Home / 2,175.06-3,001.50-1,180.31

Finding the Fourth Proportional to 2,175.06, 3,001.50 and 1,180.31

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Solution

The fourth proportional to 2,175.06, 3,001.50 and 1,180.31 is: 1,628.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.06 : 3,001.50 = 1,180.31 : x
  2. Step 2: Convert to fraction form
    2,175.06/3,001.50 = 1,180.31/x
  3. Step 3: Cross multiply
    2,175.06x = 3,001.50 × 1,180.31
  4. Step 4: Simplify right side
    2,175.06x = 3,542,685.46
  5. Step 5: Solve for x
    x = 3,542,685.46/2,175.06
  6. Step 6: Final answer
    x = 1,628.78

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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.