Home / 1,977.22-2,727.27-1,190.50

Finding the Fourth Proportional to 1,977.22, 2,727.27 and 1,190.50

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Solution

The fourth proportional to 1,977.22, 2,727.27 and 1,190.50 is: 1,642.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.22 : 2,727.27 = 1,190.50 : x
  2. Step 2: Convert to fraction form
    1,977.22/2,727.27 = 1,190.50/x
  3. Step 3: Cross multiply
    1,977.22x = 2,727.27 × 1,190.50
  4. Step 4: Simplify right side
    1,977.22x = 3,246,814.94
  5. Step 5: Solve for x
    x = 3,246,814.94/1,977.22
  6. Step 6: Final answer
    x = 1,642.11

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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.