Home / 4,116.10-6,186.60-3,131.95

Finding the Fourth Proportional to 4,116.10, 6,186.60 and 3,131.95

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Solution

The fourth proportional to 4,116.10, 6,186.60 and 3,131.95 is: 4,707.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,116.10 : 6,186.60 = 3,131.95 : x
  2. Step 2: Convert to fraction form
    4,116.10/6,186.60 = 3,131.95/x
  3. Step 3: Cross multiply
    4,116.10x = 6,186.60 × 3,131.95
  4. Step 4: Simplify right side
    4,116.10x = 19,376,121.87
  5. Step 5: Solve for x
    x = 19,376,121.87/4,116.10
  6. Step 6: Final answer
    x = 4,707.40

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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.