Home / 1,983.56-2,717.44-1,909.70

Finding the Fourth Proportional to 1,983.56, 2,717.44 and 1,909.70

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Solution

The fourth proportional to 1,983.56, 2,717.44 and 1,909.70 is: 2,616.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.56 : 2,717.44 = 1,909.70 : x
  2. Step 2: Convert to fraction form
    1,983.56/2,717.44 = 1,909.70/x
  3. Step 3: Cross multiply
    1,983.56x = 2,717.44 × 1,909.70
  4. Step 4: Simplify right side
    1,983.56x = 5,189,495.17
  5. Step 5: Solve for x
    x = 5,189,495.17/1,983.56
  6. Step 6: Final answer
    x = 2,616.25

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.