Home / 2,080.37-3,120.60-619.53

Finding the Fourth Proportional to 2,080.37, 3,120.60 and 619.53

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Solution

The fourth proportional to 2,080.37, 3,120.60 and 619.53 is: 929.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.37 : 3,120.60 = 619.53 : x
  2. Step 2: Convert to fraction form
    2,080.37/3,120.60 = 619.53/x
  3. Step 3: Cross multiply
    2,080.37x = 3,120.60 × 619.53
  4. Step 4: Simplify right side
    2,080.37x = 1,933,305.32
  5. Step 5: Solve for x
    x = 1,933,305.32/2,080.37
  6. Step 6: Final answer
    x = 929.31

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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.