Home / 1,515.51-2,273.07-475.29

Finding the Fourth Proportional to 1,515.51, 2,273.07 and 475.29

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Solution

The fourth proportional to 1,515.51, 2,273.07 and 475.29 is: 712.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.51 : 2,273.07 = 475.29 : x
  2. Step 2: Convert to fraction form
    1,515.51/2,273.07 = 475.29/x
  3. Step 3: Cross multiply
    1,515.51x = 2,273.07 × 475.29
  4. Step 4: Simplify right side
    1,515.51x = 1,080,367.44
  5. Step 5: Solve for x
    x = 1,080,367.44/1,515.51
  6. Step 6: Final answer
    x = 712.87

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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.