Home / 3,581.54-4,942.05-1,988.17

Finding the Fourth Proportional to 3,581.54, 4,942.05 and 1,988.17

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Solution

The fourth proportional to 3,581.54, 4,942.05 and 1,988.17 is: 2,743.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.54 : 4,942.05 = 1,988.17 : x
  2. Step 2: Convert to fraction form
    3,581.54/4,942.05 = 1,988.17/x
  3. Step 3: Cross multiply
    3,581.54x = 4,942.05 × 1,988.17
  4. Step 4: Simplify right side
    3,581.54x = 9,825,635.55
  5. Step 5: Solve for x
    x = 9,825,635.55/3,581.54
  6. Step 6: Final answer
    x = 2,743.41

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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.