Home / 3,021.12-4,163.16-2,180.40

Finding the Fourth Proportional to 3,021.12, 4,163.16 and 2,180.40

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Solution

The fourth proportional to 3,021.12, 4,163.16 and 2,180.40 is: 3,004.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.12 : 4,163.16 = 2,180.40 : x
  2. Step 2: Convert to fraction form
    3,021.12/4,163.16 = 2,180.40/x
  3. Step 3: Cross multiply
    3,021.12x = 4,163.16 × 2,180.40
  4. Step 4: Simplify right side
    3,021.12x = 9,077,354.06
  5. Step 5: Solve for x
    x = 9,077,354.06/3,021.12
  6. Step 6: Final answer
    x = 3,004.63

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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.