Home / 5,739.78-7,922.16-3,643.50

Finding the Fourth Proportional to 5,739.78, 7,922.16 and 3,643.50

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Solution

The fourth proportional to 5,739.78, 7,922.16 and 3,643.50 is: 5,028.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,739.78 : 7,922.16 = 3,643.50 : x
  2. Step 2: Convert to fraction form
    5,739.78/7,922.16 = 3,643.50/x
  3. Step 3: Cross multiply
    5,739.78x = 7,922.16 × 3,643.50
  4. Step 4: Simplify right side
    5,739.78x = 28,864,389.96
  5. Step 5: Solve for x
    x = 28,864,389.96/5,739.78
  6. Step 6: Final answer
    x = 5,028.83

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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.