Home / 7,731.05-10,668.81-4,194.19

Finding the Fourth Proportional to 7,731.05, 10,668.81 and 4,194.19

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Solution

The fourth proportional to 7,731.05, 10,668.81 and 4,194.19 is: 5,787.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,731.05 : 10,668.81 = 4,194.19 : x
  2. Step 2: Convert to fraction form
    7,731.05/10,668.81 = 4,194.19/x
  3. Step 3: Cross multiply
    7,731.05x = 10,668.81 × 4,194.19
  4. Step 4: Simplify right side
    7,731.05x = 44,746,949.88
  5. Step 5: Solve for x
    x = 44,746,949.88/7,731.05
  6. Step 6: Final answer
    x = 5,787.95

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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.