Home / 3,160.80-4,740.39-1,186.02

Finding the Fourth Proportional to 3,160.80, 4,740.39 and 1,186.02

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Solution

The fourth proportional to 3,160.80, 4,740.39 and 1,186.02 is: 1,778.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.80 : 4,740.39 = 1,186.02 : x
  2. Step 2: Convert to fraction form
    3,160.80/4,740.39 = 1,186.02/x
  3. Step 3: Cross multiply
    3,160.80x = 4,740.39 × 1,186.02
  4. Step 4: Simplify right side
    3,160.80x = 5,622,197.35
  5. Step 5: Solve for x
    x = 5,622,197.35/3,160.80
  6. Step 6: Final answer
    x = 1,778.73

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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.