Home / 3,409.52-5,114.96-1,218.56

Finding the Fourth Proportional to 3,409.52, 5,114.96 and 1,218.56

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Solution

The fourth proportional to 3,409.52, 5,114.96 and 1,218.56 is: 1,828.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.52 : 5,114.96 = 1,218.56 : x
  2. Step 2: Convert to fraction form
    3,409.52/5,114.96 = 1,218.56/x
  3. Step 3: Cross multiply
    3,409.52x = 5,114.96 × 1,218.56
  4. Step 4: Simplify right side
    3,409.52x = 6,232,885.66
  5. Step 5: Solve for x
    x = 6,232,885.66/3,409.52
  6. Step 6: Final answer
    x = 1,828.08

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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.