Home / 5,090.40-7,629.24-2,750.31

Finding the Fourth Proportional to 5,090.40, 7,629.24 and 2,750.31

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Solution

The fourth proportional to 5,090.40, 7,629.24 and 2,750.31 is: 4,122.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.40 : 7,629.24 = 2,750.31 : x
  2. Step 2: Convert to fraction form
    5,090.40/7,629.24 = 2,750.31/x
  3. Step 3: Cross multiply
    5,090.40x = 7,629.24 × 2,750.31
  4. Step 4: Simplify right side
    5,090.40x = 20,982,775.06
  5. Step 5: Solve for x
    x = 20,982,775.06/5,090.40
  6. Step 6: Final answer
    x = 4,122.03

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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.