Home / 1,224.61-1,837.19-402.85

Finding the Fourth Proportional to 1,224.61, 1,837.19 and 402.85

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Solution

The fourth proportional to 1,224.61, 1,837.19 and 402.85 is: 604.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.61 : 1,837.19 = 402.85 : x
  2. Step 2: Convert to fraction form
    1,224.61/1,837.19 = 402.85/x
  3. Step 3: Cross multiply
    1,224.61x = 1,837.19 × 402.85
  4. Step 4: Simplify right side
    1,224.61x = 740,113.78
  5. Step 5: Solve for x
    x = 740,113.78/1,224.61
  6. Step 6: Final answer
    x = 604.37

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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.