Home / 3,021.78-4,170.24-1,695.95

Finding the Fourth Proportional to 3,021.78, 4,170.24 and 1,695.95

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Solution

The fourth proportional to 3,021.78, 4,170.24 and 1,695.95 is: 2,340.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.78 : 4,170.24 = 1,695.95 : x
  2. Step 2: Convert to fraction form
    3,021.78/4,170.24 = 1,695.95/x
  3. Step 3: Cross multiply
    3,021.78x = 4,170.24 × 1,695.95
  4. Step 4: Simplify right side
    3,021.78x = 7,072,497.68
  5. Step 5: Solve for x
    x = 7,072,497.68/3,021.78
  6. Step 6: Final answer
    x = 2,340.51

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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.