Home / 1,727.75-2,382.63-1,161.86

Finding the Fourth Proportional to 1,727.75, 2,382.63 and 1,161.86

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Solution

The fourth proportional to 1,727.75, 2,382.63 and 1,161.86 is: 1,602.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.75 : 2,382.63 = 1,161.86 : x
  2. Step 2: Convert to fraction form
    1,727.75/2,382.63 = 1,161.86/x
  3. Step 3: Cross multiply
    1,727.75x = 2,382.63 × 1,161.86
  4. Step 4: Simplify right side
    1,727.75x = 2,768,282.49
  5. Step 5: Solve for x
    x = 2,768,282.49/1,727.75
  6. Step 6: Final answer
    x = 1,602.25

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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.