Home / 1,601.05-2,399.14-1,188.25

Finding the Fourth Proportional to 1,601.05, 2,399.14 and 1,188.25

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Solution

The fourth proportional to 1,601.05, 2,399.14 and 1,188.25 is: 1,780.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,601.05 : 2,399.14 = 1,188.25 : x
  2. Step 2: Convert to fraction form
    1,601.05/2,399.14 = 1,188.25/x
  3. Step 3: Cross multiply
    1,601.05x = 2,399.14 × 1,188.25
  4. Step 4: Simplify right side
    1,601.05x = 2,850,778.11
  5. Step 5: Solve for x
    x = 2,850,778.11/1,601.05
  6. Step 6: Final answer
    x = 1,780.57

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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.