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Finding the Fourth Proportional to 1,983.70, 2,737.52 and 1,099.52

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Solution

The fourth proportional to 1,983.70, 2,737.52 and 1,099.52 is: 1,517.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.70 : 2,737.52 = 1,099.52 : x
  2. Step 2: Convert to fraction form
    1,983.70/2,737.52 = 1,099.52/x
  3. Step 3: Cross multiply
    1,983.70x = 2,737.52 × 1,099.52
  4. Step 4: Simplify right side
    1,983.70x = 3,009,947.05
  5. Step 5: Solve for x
    x = 3,009,947.05/1,983.70
  6. Step 6: Final answer
    x = 1,517.34

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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.