Home / 1,515.74-2,273.54-475.57

Finding the Fourth Proportional to 1,515.74, 2,273.54 and 475.57

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Solution

The fourth proportional to 1,515.74, 2,273.54 and 475.57 is: 713.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.74 : 2,273.54 = 475.57 : x
  2. Step 2: Convert to fraction form
    1,515.74/2,273.54 = 475.57/x
  3. Step 3: Cross multiply
    1,515.74x = 2,273.54 × 475.57
  4. Step 4: Simplify right side
    1,515.74x = 1,081,227.42
  5. Step 5: Solve for x
    x = 1,081,227.42/1,515.74
  6. Step 6: Final answer
    x = 713.33

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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.