Home / 4,880.69-6,732.82-3,109.22

Finding the Fourth Proportional to 4,880.69, 6,732.82 and 3,109.22

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Solution

The fourth proportional to 4,880.69, 6,732.82 and 3,109.22 is: 4,289.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.69 : 6,732.82 = 3,109.22 : x
  2. Step 2: Convert to fraction form
    4,880.69/6,732.82 = 3,109.22/x
  3. Step 3: Cross multiply
    4,880.69x = 6,732.82 × 3,109.22
  4. Step 4: Simplify right side
    4,880.69x = 20,933,818.60
  5. Step 5: Solve for x
    x = 20,933,818.60/4,880.69
  6. Step 6: Final answer
    x = 4,289.11

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1.5x scale

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.