Home / 2,180.44-3,008.95-1,185.70

Finding the Fourth Proportional to 2,180.44, 3,008.95 and 1,185.70

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Solution

The fourth proportional to 2,180.44, 3,008.95 and 1,185.70 is: 1,636.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.44 : 3,008.95 = 1,185.70 : x
  2. Step 2: Convert to fraction form
    2,180.44/3,008.95 = 1,185.70/x
  3. Step 3: Cross multiply
    2,180.44x = 3,008.95 × 1,185.70
  4. Step 4: Simplify right side
    2,180.44x = 3,567,691.04
  5. Step 5: Solve for x
    x = 3,567,691.04/2,180.44
  6. Step 6: Final answer
    x = 1,636.23

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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.