Home / 3,488.45-4,815.32-2,309.90

Finding the Fourth Proportional to 3,488.45, 4,815.32 and 2,309.90

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Solution

The fourth proportional to 3,488.45, 4,815.32 and 2,309.90 is: 3,188.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.45 : 4,815.32 = 2,309.90 : x
  2. Step 2: Convert to fraction form
    3,488.45/4,815.32 = 2,309.90/x
  3. Step 3: Cross multiply
    3,488.45x = 4,815.32 × 2,309.90
  4. Step 4: Simplify right side
    3,488.45x = 11,122,880.70
  5. Step 5: Solve for x
    x = 11,122,880.70/3,488.45
  6. Step 6: Final answer
    x = 3,188.49

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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.