Home / 3,112.60-4,670.72-2,861.36

Finding the Fourth Proportional to 3,112.60, 4,670.72 and 2,861.36

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Solution

The fourth proportional to 3,112.60, 4,670.72 and 2,861.36 is: 4,293.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.60 : 4,670.72 = 2,861.36 : x
  2. Step 2: Convert to fraction form
    3,112.60/4,670.72 = 2,861.36/x
  3. Step 3: Cross multiply
    3,112.60x = 4,670.72 × 2,861.36
  4. Step 4: Simplify right side
    3,112.60x = 13,364,611.38
  5. Step 5: Solve for x
    x = 13,364,611.38/3,112.60
  6. Step 6: Final answer
    x = 4,293.71

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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.