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Finding the Fourth Proportional to 1,224.88, 1,839.76 and 1,195.76

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Solution

The fourth proportional to 1,224.88, 1,839.76 and 1,195.76 is: 1,796.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.88 : 1,839.76 = 1,195.76 : x
  2. Step 2: Convert to fraction form
    1,224.88/1,839.76 = 1,195.76/x
  3. Step 3: Cross multiply
    1,224.88x = 1,839.76 × 1,195.76
  4. Step 4: Simplify right side
    1,224.88x = 2,199,911.42
  5. Step 5: Solve for x
    x = 2,199,911.42/1,224.88
  6. Step 6: Final answer
    x = 1,796.02

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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.