Home / 1,224.21-1,837.22-575.40

Finding the Fourth Proportional to 1,224.21, 1,837.22 and 575.40

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Solution

The fourth proportional to 1,224.21, 1,837.22 and 575.40 is: 863.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.21 : 1,837.22 = 575.40 : x
  2. Step 2: Convert to fraction form
    1,224.21/1,837.22 = 575.40/x
  3. Step 3: Cross multiply
    1,224.21x = 1,837.22 × 575.40
  4. Step 4: Simplify right side
    1,224.21x = 1,057,136.39
  5. Step 5: Solve for x
    x = 1,057,136.39/1,224.21
  6. Step 6: Final answer
    x = 863.53

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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.