Home / 5,609.21-7,738.16-3,620.43

Finding the Fourth Proportional to 5,609.21, 7,738.16 and 3,620.43

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Solution

The fourth proportional to 5,609.21, 7,738.16 and 3,620.43 is: 4,994.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,609.21 : 7,738.16 = 3,620.43 : x
  2. Step 2: Convert to fraction form
    5,609.21/7,738.16 = 3,620.43/x
  3. Step 3: Cross multiply
    5,609.21x = 7,738.16 × 3,620.43
  4. Step 4: Simplify right side
    5,609.21x = 28,015,448.51
  5. Step 5: Solve for x
    x = 28,015,448.51/5,609.21
  6. Step 6: Final answer
    x = 4,994.55

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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.