Home / 3,137.22-4,329.36-1,720.98

Finding the Fourth Proportional to 3,137.22, 4,329.36 and 1,720.98

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Solution

The fourth proportional to 3,137.22, 4,329.36 and 1,720.98 is: 2,374.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.22 : 4,329.36 = 1,720.98 : x
  2. Step 2: Convert to fraction form
    3,137.22/4,329.36 = 1,720.98/x
  3. Step 3: Cross multiply
    3,137.22x = 4,329.36 × 1,720.98
  4. Step 4: Simplify right side
    3,137.22x = 7,450,741.97
  5. Step 5: Solve for x
    x = 7,450,741.97/3,137.22
  6. Step 6: Final answer
    x = 2,374.95

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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.