Home / 2,983.64-4,118.78-1,789.16

Finding the Fourth Proportional to 2,983.64, 4,118.78 and 1,789.16

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Solution

The fourth proportional to 2,983.64, 4,118.78 and 1,789.16 is: 2,469.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.64 : 4,118.78 = 1,789.16 : x
  2. Step 2: Convert to fraction form
    2,983.64/4,118.78 = 1,789.16/x
  3. Step 3: Cross multiply
    2,983.64x = 4,118.78 × 1,789.16
  4. Step 4: Simplify right side
    2,983.64x = 7,369,140.30
  5. Step 5: Solve for x
    x = 7,369,140.30/2,983.64
  6. Step 6: Final answer
    x = 2,469.85

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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.