Home / 9,181.26-13,772.80-2,939.70

Finding the Fourth Proportional to 9,181.26, 13,772.80 and 2,939.70

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Solution

The fourth proportional to 9,181.26, 13,772.80 and 2,939.70 is: 4,409.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,181.26 : 13,772.80 = 2,939.70 : x
  2. Step 2: Convert to fraction form
    9,181.26/13,772.80 = 2,939.70/x
  3. Step 3: Cross multiply
    9,181.26x = 13,772.80 × 2,939.70
  4. Step 4: Simplify right side
    9,181.26x = 40,487,900.16
  5. Step 5: Solve for x
    x = 40,487,900.16/9,181.26
  6. Step 6: Final answer
    x = 4,409.84

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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.