Home / 5,251.73-7,245.36-3,012.80

Finding the Fourth Proportional to 5,251.73, 7,245.36 and 3,012.80

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Solution

The fourth proportional to 5,251.73, 7,245.36 and 3,012.80 is: 4,156.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.73 : 7,245.36 = 3,012.80 : x
  2. Step 2: Convert to fraction form
    5,251.73/7,245.36 = 3,012.80/x
  3. Step 3: Cross multiply
    5,251.73x = 7,245.36 × 3,012.80
  4. Step 4: Simplify right side
    5,251.73x = 21,828,820.61
  5. Step 5: Solve for x
    x = 21,828,820.61/5,251.73
  6. Step 6: Final answer
    x = 4,156.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.