Home / 2,108.45-3,163.26-922.60

Finding the Fourth Proportional to 2,108.45, 3,163.26 and 922.60

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Solution

The fourth proportional to 2,108.45, 3,163.26 and 922.60 is: 1,384.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.45 : 3,163.26 = 922.60 : x
  2. Step 2: Convert to fraction form
    2,108.45/3,163.26 = 922.60/x
  3. Step 3: Cross multiply
    2,108.45x = 3,163.26 × 922.60
  4. Step 4: Simplify right side
    2,108.45x = 2,918,423.68
  5. Step 5: Solve for x
    x = 2,918,423.68/2,108.45
  6. Step 6: Final answer
    x = 1,384.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.