Home / 3,161.22-4,741.95-1,186.64

Finding the Fourth Proportional to 3,161.22, 4,741.95 and 1,186.64

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Solution

The fourth proportional to 3,161.22, 4,741.95 and 1,186.64 is: 1,780.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.22 : 4,741.95 = 1,186.64 : x
  2. Step 2: Convert to fraction form
    3,161.22/4,741.95 = 1,186.64/x
  3. Step 3: Cross multiply
    3,161.22x = 4,741.95 × 1,186.64
  4. Step 4: Simplify right side
    3,161.22x = 5,626,987.55
  5. Step 5: Solve for x
    x = 5,626,987.55/3,161.22
  6. Step 6: Final answer
    x = 1,780.01

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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.