Home / 3,684.76-5,084.88-2,151.95

Finding the Fourth Proportional to 3,684.76, 5,084.88 and 2,151.95

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Solution

The fourth proportional to 3,684.76, 5,084.88 and 2,151.95 is: 2,969.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,684.76 : 5,084.88 = 2,151.95 : x
  2. Step 2: Convert to fraction form
    3,684.76/5,084.88 = 2,151.95/x
  3. Step 3: Cross multiply
    3,684.76x = 5,084.88 × 2,151.95
  4. Step 4: Simplify right side
    3,684.76x = 10,942,394.69
  5. Step 5: Solve for x
    x = 10,942,394.69/3,684.76
  6. Step 6: Final answer
    x = 2,969.64

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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.