Home / 2,080.48-3,120.36-619.96

Finding the Fourth Proportional to 2,080.48, 3,120.36 and 619.96

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Solution

The fourth proportional to 2,080.48, 3,120.36 and 619.96 is: 929.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.48 : 3,120.36 = 619.96 : x
  2. Step 2: Convert to fraction form
    2,080.48/3,120.36 = 619.96/x
  3. Step 3: Cross multiply
    2,080.48x = 3,120.36 × 619.96
  4. Step 4: Simplify right side
    2,080.48x = 1,934,498.39
  5. Step 5: Solve for x
    x = 1,934,498.39/2,080.48
  6. Step 6: Final answer
    x = 929.83

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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.