Home / 1,515.61-2,273.69-541.49

Finding the Fourth Proportional to 1,515.61, 2,273.69 and 541.49

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Solution

The fourth proportional to 1,515.61, 2,273.69 and 541.49 is: 812.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.61 : 2,273.69 = 541.49 : x
  2. Step 2: Convert to fraction form
    1,515.61/2,273.69 = 541.49/x
  3. Step 3: Cross multiply
    1,515.61x = 2,273.69 × 541.49
  4. Step 4: Simplify right side
    1,515.61x = 1,231,167.34
  5. Step 5: Solve for x
    x = 1,231,167.34/1,515.61
  6. Step 6: Final answer
    x = 812.32

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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.