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Finding the Fourth Proportional to 1,983.55, 2,737.21 and 1,099.34

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Solution

The fourth proportional to 1,983.55, 2,737.21 and 1,099.34 is: 1,517.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.55 : 2,737.21 = 1,099.34 : x
  2. Step 2: Convert to fraction form
    1,983.55/2,737.21 = 1,099.34/x
  3. Step 3: Cross multiply
    1,983.55x = 2,737.21 × 1,099.34
  4. Step 4: Simplify right side
    1,983.55x = 3,009,124.44
  5. Step 5: Solve for x
    x = 3,009,124.44/1,983.55
  6. Step 6: Final answer
    x = 1,517.04

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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.