Home / 1,225.53-1,837.76-445.27

Finding the Fourth Proportional to 1,225.53, 1,837.76 and 445.27

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Solution

The fourth proportional to 1,225.53, 1,837.76 and 445.27 is: 667.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225.53 : 1,837.76 = 445.27 : x
  2. Step 2: Convert to fraction form
    1,225.53/1,837.76 = 445.27/x
  3. Step 3: Cross multiply
    1,225.53x = 1,837.76 × 445.27
  4. Step 4: Simplify right side
    1,225.53x = 818,305.10
  5. Step 5: Solve for x
    x = 818,305.10/1,225.53
  6. Step 6: Final answer
    x = 667.72

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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.