Home / 7,765.20-11,649.56-2,834.87

Finding the Fourth Proportional to 7,765.20, 11,649.56 and 2,834.87

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Solution

The fourth proportional to 7,765.20, 11,649.56 and 2,834.87 is: 4,252.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.20 : 11,649.56 = 2,834.87 : x
  2. Step 2: Convert to fraction form
    7,765.20/11,649.56 = 2,834.87/x
  3. Step 3: Cross multiply
    7,765.20x = 11,649.56 × 2,834.87
  4. Step 4: Simplify right side
    7,765.20x = 33,024,915.74
  5. Step 5: Solve for x
    x = 33,024,915.74/7,765.20
  6. Step 6: Final answer
    x = 4,252.94

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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.