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Finding the Fourth Proportional to 9,320.26, 13,980.83 and 3,080.83

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Solution

The fourth proportional to 9,320.26, 13,980.83 and 3,080.83 is: 4,621.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.26 : 13,980.83 = 3,080.83 : x
  2. Step 2: Convert to fraction form
    9,320.26/13,980.83 = 3,080.83/x
  3. Step 3: Cross multiply
    9,320.26x = 13,980.83 × 3,080.83
  4. Step 4: Simplify right side
    9,320.26x = 43,072,560.49
  5. Step 5: Solve for x
    x = 43,072,560.49/9,320.26
  6. Step 6: Final answer
    x = 4,621.39

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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.