Home / 3,321.54-4,985.38-1,679.24

Finding the Fourth Proportional to 3,321.54, 4,985.38 and 1,679.24

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Solution

The fourth proportional to 3,321.54, 4,985.38 and 1,679.24 is: 2,520.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.54 : 4,985.38 = 1,679.24 : x
  2. Step 2: Convert to fraction form
    3,321.54/4,985.38 = 1,679.24/x
  3. Step 3: Cross multiply
    3,321.54x = 4,985.38 × 1,679.24
  4. Step 4: Simplify right side
    3,321.54x = 8,371,649.51
  5. Step 5: Solve for x
    x = 8,371,649.51/3,321.54
  6. Step 6: Final answer
    x = 2,520.41

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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.