Home / 2,135.50-3,203.56-674.75

Finding the Fourth Proportional to 2,135.50, 3,203.56 and 674.75

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Solution

The fourth proportional to 2,135.50, 3,203.56 and 674.75 is: 1,012.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.50 : 3,203.56 = 674.75 : x
  2. Step 2: Convert to fraction form
    2,135.50/3,203.56 = 674.75/x
  3. Step 3: Cross multiply
    2,135.50x = 3,203.56 × 674.75
  4. Step 4: Simplify right side
    2,135.50x = 2,161,602.11
  5. Step 5: Solve for x
    x = 2,161,602.11/2,135.50
  6. Step 6: Final answer
    x = 1,012.22

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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.