Home / 5,284.80-7,924.32-2,689.92

Finding the Fourth Proportional to 5,284.80, 7,924.32 and 2,689.92

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Solution

The fourth proportional to 5,284.80, 7,924.32 and 2,689.92 is: 4,033.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,284.80 : 7,924.32 = 2,689.92 : x
  2. Step 2: Convert to fraction form
    5,284.80/7,924.32 = 2,689.92/x
  3. Step 3: Cross multiply
    5,284.80x = 7,924.32 × 2,689.92
  4. Step 4: Simplify right side
    5,284.80x = 21,315,786.85
  5. Step 5: Solve for x
    x = 21,315,786.85/5,284.80
  6. Step 6: Final answer
    x = 4,033.41

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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.