Home / 2,135.95-3,204.22-674.60

Finding the Fourth Proportional to 2,135.95, 3,204.22 and 674.60

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Solution

The fourth proportional to 2,135.95, 3,204.22 and 674.60 is: 1,011.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.95 : 3,204.22 = 674.60 : x
  2. Step 2: Convert to fraction form
    2,135.95/3,204.22 = 674.60/x
  3. Step 3: Cross multiply
    2,135.95x = 3,204.22 × 674.60
  4. Step 4: Simplify right side
    2,135.95x = 2,161,566.81
  5. Step 5: Solve for x
    x = 2,161,566.81/2,135.95
  6. Step 6: Final answer
    x = 1,011.99

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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.