Home / 1,983.12-2,737.62-1,511.16

Finding the Fourth Proportional to 1,983.12, 2,737.62 and 1,511.16

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Solution

The fourth proportional to 1,983.12, 2,737.62 and 1,511.16 is: 2,086.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.12 : 2,737.62 = 1,511.16 : x
  2. Step 2: Convert to fraction form
    1,983.12/2,737.62 = 1,511.16/x
  3. Step 3: Cross multiply
    1,983.12x = 2,737.62 × 1,511.16
  4. Step 4: Simplify right side
    1,983.12x = 4,136,981.84
  5. Step 5: Solve for x
    x = 4,136,981.84/1,983.12
  6. Step 6: Final answer
    x = 2,086.10

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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.