Home / 3,409.23-5,114.66-1,187.74

Finding the Fourth Proportional to 3,409.23, 5,114.66 and 1,187.74

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Solution

The fourth proportional to 3,409.23, 5,114.66 and 1,187.74 is: 1,781.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.23 : 5,114.66 = 1,187.74 : x
  2. Step 2: Convert to fraction form
    3,409.23/5,114.66 = 1,187.74/x
  3. Step 3: Cross multiply
    3,409.23x = 5,114.66 × 1,187.74
  4. Step 4: Simplify right side
    3,409.23x = 6,074,886.27
  5. Step 5: Solve for x
    x = 6,074,886.27/3,409.23
  6. Step 6: Final answer
    x = 1,781.89

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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.