Home / 1,981.11-2,733.72-1,096.70

Finding the Fourth Proportional to 1,981.11, 2,733.72 and 1,096.70

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Solution

The fourth proportional to 1,981.11, 2,733.72 and 1,096.70 is: 1,513.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.11 : 2,733.72 = 1,096.70 : x
  2. Step 2: Convert to fraction form
    1,981.11/2,733.72 = 1,096.70/x
  3. Step 3: Cross multiply
    1,981.11x = 2,733.72 × 1,096.70
  4. Step 4: Simplify right side
    1,981.11x = 2,998,052.94
  5. Step 5: Solve for x
    x = 2,998,052.94/1,981.11
  6. Step 6: Final answer
    x = 1,513.32

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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.