Home / 3,610.84-5,409.38-2,145.56

Finding the Fourth Proportional to 3,610.84, 5,409.38 and 2,145.56

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Solution

The fourth proportional to 3,610.84, 5,409.38 and 2,145.56 is: 3,214.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.84 : 5,409.38 = 2,145.56 : x
  2. Step 2: Convert to fraction form
    3,610.84/5,409.38 = 2,145.56/x
  3. Step 3: Cross multiply
    3,610.84x = 5,409.38 × 2,145.56
  4. Step 4: Simplify right side
    3,610.84x = 11,606,149.35
  5. Step 5: Solve for x
    x = 11,606,149.35/3,610.84
  6. Step 6: Final answer
    x = 3,214.25

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1.5x scale

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.