Home / 4,109.51-6,163.05-1,187.84

Finding the Fourth Proportional to 4,109.51, 6,163.05 and 1,187.84

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Solution

The fourth proportional to 4,109.51, 6,163.05 and 1,187.84 is: 1,781.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,109.51 : 6,163.05 = 1,187.84 : x
  2. Step 2: Convert to fraction form
    4,109.51/6,163.05 = 1,187.84/x
  3. Step 3: Cross multiply
    4,109.51x = 6,163.05 × 1,187.84
  4. Step 4: Simplify right side
    4,109.51x = 7,320,717.31
  5. Step 5: Solve for x
    x = 7,320,717.31/4,109.51
  6. Step 6: Final answer
    x = 1,781.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.