Home / 2,090.67-3,135.45-629.88

Finding the Fourth Proportional to 2,090.67, 3,135.45 and 629.88

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Solution

The fourth proportional to 2,090.67, 3,135.45 and 629.88 is: 944.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.67 : 3,135.45 = 629.88 : x
  2. Step 2: Convert to fraction form
    2,090.67/3,135.45 = 629.88/x
  3. Step 3: Cross multiply
    2,090.67x = 3,135.45 × 629.88
  4. Step 4: Simplify right side
    2,090.67x = 1,974,957.25
  5. Step 5: Solve for x
    x = 1,974,957.25/2,090.67
  6. Step 6: Final answer
    x = 944.65

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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.