Home / 5,080.20-7,619.56-1,617

Finding the Fourth Proportional to 5,080.20, 7,619.56 and 1,617

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Solution

The fourth proportional to 5,080.20, 7,619.56 and 1,617 is: 2,425.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,080.20 : 7,619.56 = 1,617 : x
  2. Step 2: Convert to fraction form
    5,080.20/7,619.56 = 1,617/x
  3. Step 3: Cross multiply
    5,080.20x = 7,619.56 × 1,617
  4. Step 4: Simplify right side
    5,080.20x = 12,320,828.52
  5. Step 5: Solve for x
    x = 12,320,828.52/5,080.20
  6. Step 6: Final answer
    x = 2,425.26

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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.