Home / 1,515.09-2,273.37-541.65

Finding the Fourth Proportional to 1,515.09, 2,273.37 and 541.65

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Solution

The fourth proportional to 1,515.09, 2,273.37 and 541.65 is: 812.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.09 : 2,273.37 = 541.65 : x
  2. Step 2: Convert to fraction form
    1,515.09/2,273.37 = 541.65/x
  3. Step 3: Cross multiply
    1,515.09x = 2,273.37 × 541.65
  4. Step 4: Simplify right side
    1,515.09x = 1,231,370.86
  5. Step 5: Solve for x
    x = 1,231,370.86/1,515.09
  6. Step 6: Final answer
    x = 812.74

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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.