Home / 3,922.71-5,880.39-2,690.70

Finding the Fourth Proportional to 3,922.71, 5,880.39 and 2,690.70

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Solution

The fourth proportional to 3,922.71, 5,880.39 and 2,690.70 is: 4,033.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.71 : 5,880.39 = 2,690.70 : x
  2. Step 2: Convert to fraction form
    3,922.71/5,880.39 = 2,690.70/x
  3. Step 3: Cross multiply
    3,922.71x = 5,880.39 × 2,690.70
  4. Step 4: Simplify right side
    3,922.71x = 15,822,365.37
  5. Step 5: Solve for x
    x = 15,822,365.37/3,922.71
  6. Step 6: Final answer
    x = 4,033.53

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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.