Home / 7,219.75-10,829.94-2,289.76

Finding the Fourth Proportional to 7,219.75, 10,829.94 and 2,289.76

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Solution

The fourth proportional to 7,219.75, 10,829.94 and 2,289.76 is: 3,434.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.75 : 10,829.94 = 2,289.76 : x
  2. Step 2: Convert to fraction form
    7,219.75/10,829.94 = 2,289.76/x
  3. Step 3: Cross multiply
    7,219.75x = 10,829.94 × 2,289.76
  4. Step 4: Simplify right side
    7,219.75x = 24,797,963.41
  5. Step 5: Solve for x
    x = 24,797,963.41/7,219.75
  6. Step 6: Final answer
    x = 3,434.74

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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.