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Finding the Fourth Proportional to 1,224.45, 1,832.10 and 754.23

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Solution

The fourth proportional to 1,224.45, 1,832.10 and 754.23 is: 1,128.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.45 : 1,832.10 = 754.23 : x
  2. Step 2: Convert to fraction form
    1,224.45/1,832.10 = 754.23/x
  3. Step 3: Cross multiply
    1,224.45x = 1,832.10 × 754.23
  4. Step 4: Simplify right side
    1,224.45x = 1,381,824.78
  5. Step 5: Solve for x
    x = 1,381,824.78/1,224.45
  6. Step 6: Final answer
    x = 1,128.53

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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.