Home / 4,109.68-6,165.48-1,187.91

Finding the Fourth Proportional to 4,109.68, 6,165.48 and 1,187.91

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Solution

The fourth proportional to 4,109.68, 6,165.48 and 1,187.91 is: 1,782.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,109.68 : 6,165.48 = 1,187.91 : x
  2. Step 2: Convert to fraction form
    4,109.68/6,165.48 = 1,187.91/x
  3. Step 3: Cross multiply
    4,109.68x = 6,165.48 × 1,187.91
  4. Step 4: Simplify right side
    4,109.68x = 7,324,039.80
  5. Step 5: Solve for x
    x = 7,324,039.80/4,109.68
  6. Step 6: Final answer
    x = 1,782.14

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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.