Home / 3,319.92-4,579.92-2,139.48

Finding the Fourth Proportional to 3,319.92, 4,579.92 and 2,139.48

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Solution

The fourth proportional to 3,319.92, 4,579.92 and 2,139.48 is: 2,951.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.92 : 4,579.92 = 2,139.48 : x
  2. Step 2: Convert to fraction form
    3,319.92/4,579.92 = 2,139.48/x
  3. Step 3: Cross multiply
    3,319.92x = 4,579.92 × 2,139.48
  4. Step 4: Simplify right side
    3,319.92x = 9,798,647.24
  5. Step 5: Solve for x
    x = 9,798,647.24/3,319.92
  6. Step 6: Final answer
    x = 2,951.47

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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.