Home / 2,224.55-3,069.90-1,229.80

Finding the Fourth Proportional to 2,224.55, 3,069.90 and 1,229.80

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Solution

The fourth proportional to 2,224.55, 3,069.90 and 1,229.80 is: 1,697.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.55 : 3,069.90 = 1,229.80 : x
  2. Step 2: Convert to fraction form
    2,224.55/3,069.90 = 1,229.80/x
  3. Step 3: Cross multiply
    2,224.55x = 3,069.90 × 1,229.80
  4. Step 4: Simplify right side
    2,224.55x = 3,775,363.02
  5. Step 5: Solve for x
    x = 3,775,363.02/2,224.55
  6. Step 6: Final answer
    x = 1,697.14

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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.