Home / 5,213.52-7,820.71-1,515.74

Finding the Fourth Proportional to 5,213.52, 7,820.71 and 1,515.74

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Solution

The fourth proportional to 5,213.52, 7,820.71 and 1,515.74 is: 2,273.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.52 : 7,820.71 = 1,515.74 : x
  2. Step 2: Convert to fraction form
    5,213.52/7,820.71 = 1,515.74/x
  3. Step 3: Cross multiply
    5,213.52x = 7,820.71 × 1,515.74
  4. Step 4: Simplify right side
    5,213.52x = 11,854,190.33
  5. Step 5: Solve for x
    x = 11,854,190.33/5,213.52
  6. Step 6: Final answer
    x = 2,273.74

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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.