Home / 3,214.80-4,436.52-1,817.28

Finding the Fourth Proportional to 3,214.80, 4,436.52 and 1,817.28

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Solution

The fourth proportional to 3,214.80, 4,436.52 and 1,817.28 is: 2,507.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,214.80 : 4,436.52 = 1,817.28 : x
  2. Step 2: Convert to fraction form
    3,214.80/4,436.52 = 1,817.28/x
  3. Step 3: Cross multiply
    3,214.80x = 4,436.52 × 1,817.28
  4. Step 4: Simplify right side
    3,214.80x = 8,062,399.07
  5. Step 5: Solve for x
    x = 8,062,399.07/3,214.80
  6. Step 6: Final answer
    x = 2,507.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.