Home / 3,341.20-5,005.90-2,979.20

Finding the Fourth Proportional to 3,341.20, 5,005.90 and 2,979.20

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Solution

The fourth proportional to 3,341.20, 5,005.90 and 2,979.20 is: 4,463.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,341.20 : 5,005.90 = 2,979.20 : x
  2. Step 2: Convert to fraction form
    3,341.20/5,005.90 = 2,979.20/x
  3. Step 3: Cross multiply
    3,341.20x = 5,005.90 × 2,979.20
  4. Step 4: Simplify right side
    3,341.20x = 14,913,577.28
  5. Step 5: Solve for x
    x = 14,913,577.28/3,341.20
  6. Step 6: Final answer
    x = 4,463.54

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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.