Home / 2,080.67-3,121.45-619.93

Finding the Fourth Proportional to 2,080.67, 3,121.45 and 619.93

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Solution

The fourth proportional to 2,080.67, 3,121.45 and 619.93 is: 930.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.67 : 3,121.45 = 619.93 : x
  2. Step 2: Convert to fraction form
    2,080.67/3,121.45 = 619.93/x
  3. Step 3: Cross multiply
    2,080.67x = 3,121.45 × 619.93
  4. Step 4: Simplify right side
    2,080.67x = 1,935,080.50
  5. Step 5: Solve for x
    x = 1,935,080.50/2,080.67
  6. Step 6: Final answer
    x = 930.03

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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.