Home / 3,175.64-4,378.14-2,180.54

Finding the Fourth Proportional to 3,175.64, 4,378.14 and 2,180.54

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Solution

The fourth proportional to 3,175.64, 4,378.14 and 2,180.54 is: 3,006.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.64 : 4,378.14 = 2,180.54 : x
  2. Step 2: Convert to fraction form
    3,175.64/4,378.14 = 2,180.54/x
  3. Step 3: Cross multiply
    3,175.64x = 4,378.14 × 2,180.54
  4. Step 4: Simplify right side
    3,175.64x = 9,546,709.40
  5. Step 5: Solve for x
    x = 9,546,709.40/3,175.64
  6. Step 6: Final answer
    x = 3,006.23

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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.