Home / 3,321.47-4,985.27-1,679.16

Finding the Fourth Proportional to 3,321.47, 4,985.27 and 1,679.16

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Solution

The fourth proportional to 3,321.47, 4,985.27 and 1,679.16 is: 2,520.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.47 : 4,985.27 = 1,679.16 : x
  2. Step 2: Convert to fraction form
    3,321.47/4,985.27 = 1,679.16/x
  3. Step 3: Cross multiply
    3,321.47x = 4,985.27 × 1,679.16
  4. Step 4: Simplify right side
    3,321.47x = 8,371,065.97
  5. Step 5: Solve for x
    x = 8,371,065.97/3,321.47
  6. Step 6: Final answer
    x = 2,520.29

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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.