Home / 7,778.19-11,668.94-2,513.50

Finding the Fourth Proportional to 7,778.19, 11,668.94 and 2,513.50

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Solution

The fourth proportional to 7,778.19, 11,668.94 and 2,513.50 is: 3,770.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.19 : 11,668.94 = 2,513.50 : x
  2. Step 2: Convert to fraction form
    7,778.19/11,668.94 = 2,513.50/x
  3. Step 3: Cross multiply
    7,778.19x = 11,668.94 × 2,513.50
  4. Step 4: Simplify right side
    7,778.19x = 29,329,880.69
  5. Step 5: Solve for x
    x = 29,329,880.69/7,778.19
  6. Step 6: Final answer
    x = 3,770.78

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1.5x scale

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.