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Finding the Fourth Proportional to 1,983.36, 2,737.08 and 1,099.22

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Solution

The fourth proportional to 1,983.36, 2,737.08 and 1,099.22 is: 1,516.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.36 : 2,737.08 = 1,099.22 : x
  2. Step 2: Convert to fraction form
    1,983.36/2,737.08 = 1,099.22/x
  3. Step 3: Cross multiply
    1,983.36x = 2,737.08 × 1,099.22
  4. Step 4: Simplify right side
    1,983.36x = 3,008,639.39
  5. Step 5: Solve for x
    x = 3,008,639.39/1,983.36
  6. Step 6: Final answer
    x = 1,516.94

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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.