Home / 3,218.05-4,827.21-1,368.91

Finding the Fourth Proportional to 3,218.05, 4,827.21 and 1,368.91

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Solution

The fourth proportional to 3,218.05, 4,827.21 and 1,368.91 is: 2,053.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.05 : 4,827.21 = 1,368.91 : x
  2. Step 2: Convert to fraction form
    3,218.05/4,827.21 = 1,368.91/x
  3. Step 3: Cross multiply
    3,218.05x = 4,827.21 × 1,368.91
  4. Step 4: Simplify right side
    3,218.05x = 6,608,016.04
  5. Step 5: Solve for x
    x = 6,608,016.04/3,218.05
  6. Step 6: Final answer
    x = 2,053.42

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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.