Home / 1,090.25-1,635.22-359.84

Finding the Fourth Proportional to 1,090.25, 1,635.22 and 359.84

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Solution

The fourth proportional to 1,090.25, 1,635.22 and 359.84 is: 539.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090.25 : 1,635.22 = 359.84 : x
  2. Step 2: Convert to fraction form
    1,090.25/1,635.22 = 359.84/x
  3. Step 3: Cross multiply
    1,090.25x = 1,635.22 × 359.84
  4. Step 4: Simplify right side
    1,090.25x = 588,412.90
  5. Step 5: Solve for x
    x = 588,412.90/1,090.25
  6. Step 6: Final answer
    x = 539.70

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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.