Home / 3,679.02-5,517.99-1,215.54

Finding the Fourth Proportional to 3,679.02, 5,517.99 and 1,215.54

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Solution

The fourth proportional to 3,679.02, 5,517.99 and 1,215.54 is: 1,823.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.02 : 5,517.99 = 1,215.54 : x
  2. Step 2: Convert to fraction form
    3,679.02/5,517.99 = 1,215.54/x
  3. Step 3: Cross multiply
    3,679.02x = 5,517.99 × 1,215.54
  4. Step 4: Simplify right side
    3,679.02x = 6,707,337.56
  5. Step 5: Solve for x
    x = 6,707,337.56/3,679.02
  6. Step 6: Final answer
    x = 1,823.13

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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.