Home / 4,979.10-7,468.65-3,423.90

Finding the Fourth Proportional to 4,979.10, 7,468.65 and 3,423.90

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Solution

The fourth proportional to 4,979.10, 7,468.65 and 3,423.90 is: 5,135.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.10 : 7,468.65 = 3,423.90 : x
  2. Step 2: Convert to fraction form
    4,979.10/7,468.65 = 3,423.90/x
  3. Step 3: Cross multiply
    4,979.10x = 7,468.65 × 3,423.90
  4. Step 4: Simplify right side
    4,979.10x = 25,571,910.74
  5. Step 5: Solve for x
    x = 25,571,910.74/4,979.10
  6. Step 6: Final answer
    x = 5,135.85

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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.