Home / 1,997.22-2,754.75-1,366.65

Finding the Fourth Proportional to 1,997.22, 2,754.75 and 1,366.65

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Solution

The fourth proportional to 1,997.22, 2,754.75 and 1,366.65 is: 1,885.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997.22 : 2,754.75 = 1,366.65 : x
  2. Step 2: Convert to fraction form
    1,997.22/2,754.75 = 1,366.65/x
  3. Step 3: Cross multiply
    1,997.22x = 2,754.75 × 1,366.65
  4. Step 4: Simplify right side
    1,997.22x = 3,764,779.09
  5. Step 5: Solve for x
    x = 3,764,779.09/1,997.22
  6. Step 6: Final answer
    x = 1,885.01

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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.