Home / 5,238.22-7,864.62-2,642.98

Finding the Fourth Proportional to 5,238.22, 7,864.62 and 2,642.98

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Solution

The fourth proportional to 5,238.22, 7,864.62 and 2,642.98 is: 3,968.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.22 : 7,864.62 = 2,642.98 : x
  2. Step 2: Convert to fraction form
    5,238.22/7,864.62 = 2,642.98/x
  3. Step 3: Cross multiply
    5,238.22x = 7,864.62 × 2,642.98
  4. Step 4: Simplify right side
    5,238.22x = 20,786,033.37
  5. Step 5: Solve for x
    x = 20,786,033.37/5,238.22
  6. Step 6: Final answer
    x = 3,968.15

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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.