Home / 7,218.75-10,828.43-2,288.28

Finding the Fourth Proportional to 7,218.75, 10,828.43 and 2,288.28

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Solution

The fourth proportional to 7,218.75, 10,828.43 and 2,288.28 is: 3,432.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.75 : 10,828.43 = 2,288.28 : x
  2. Step 2: Convert to fraction form
    7,218.75/10,828.43 = 2,288.28/x
  3. Step 3: Cross multiply
    7,218.75x = 10,828.43 × 2,288.28
  4. Step 4: Simplify right side
    7,218.75x = 24,778,479.80
  5. Step 5: Solve for x
    x = 24,778,479.80/7,218.75
  6. Step 6: Final answer
    x = 3,432.52

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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.