Home / 1,996.43-2,754.84-1,145.64

Finding the Fourth Proportional to 1,996.43, 2,754.84 and 1,145.64

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Solution

The fourth proportional to 1,996.43, 2,754.84 and 1,145.64 is: 1,580.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.43 : 2,754.84 = 1,145.64 : x
  2. Step 2: Convert to fraction form
    1,996.43/2,754.84 = 1,145.64/x
  3. Step 3: Cross multiply
    1,996.43x = 2,754.84 × 1,145.64
  4. Step 4: Simplify right side
    1,996.43x = 3,156,048.24
  5. Step 5: Solve for x
    x = 3,156,048.24/1,996.43
  6. Step 6: Final answer
    x = 1,580.85

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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.