Home / 7,218.89-10,828.64-2,288.42

Finding the Fourth Proportional to 7,218.89, 10,828.64 and 2,288.42

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Solution

The fourth proportional to 7,218.89, 10,828.64 and 2,288.42 is: 3,432.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.89 : 10,828.64 = 2,288.42 : x
  2. Step 2: Convert to fraction form
    7,218.89/10,828.64 = 2,288.42/x
  3. Step 3: Cross multiply
    7,218.89x = 10,828.64 × 2,288.42
  4. Step 4: Simplify right side
    7,218.89x = 24,780,410.76
  5. Step 5: Solve for x
    x = 24,780,410.76/7,218.89
  6. Step 6: Final answer
    x = 3,432.72

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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.