Home / 1,467.27-2,201.25-645.61

Finding the Fourth Proportional to 1,467.27, 2,201.25 and 645.61

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Solution

The fourth proportional to 1,467.27, 2,201.25 and 645.61 is: 968.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,467.27 : 2,201.25 = 645.61 : x
  2. Step 2: Convert to fraction form
    1,467.27/2,201.25 = 645.61/x
  3. Step 3: Cross multiply
    1,467.27x = 2,201.25 × 645.61
  4. Step 4: Simplify right side
    1,467.27x = 1,421,149.01
  5. Step 5: Solve for x
    x = 1,421,149.01/1,467.27
  6. Step 6: Final answer
    x = 968.57

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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.