Home / 5,209.20-7,187.82-3,055.02

Finding the Fourth Proportional to 5,209.20, 7,187.82 and 3,055.02

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Solution

The fourth proportional to 5,209.20, 7,187.82 and 3,055.02 is: 4,215.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.20 : 7,187.82 = 3,055.02 : x
  2. Step 2: Convert to fraction form
    5,209.20/7,187.82 = 3,055.02/x
  3. Step 3: Cross multiply
    5,209.20x = 7,187.82 × 3,055.02
  4. Step 4: Simplify right side
    5,209.20x = 21,958,933.86
  5. Step 5: Solve for x
    x = 21,958,933.86/5,209.20
  6. Step 6: Final answer
    x = 4,215.41

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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.