Home / 5,511.78-8,269.02-2,586.68

Finding the Fourth Proportional to 5,511.78, 8,269.02 and 2,586.68

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Solution

The fourth proportional to 5,511.78, 8,269.02 and 2,586.68 is: 3,880.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,511.78 : 8,269.02 = 2,586.68 : x
  2. Step 2: Convert to fraction form
    5,511.78/8,269.02 = 2,586.68/x
  3. Step 3: Cross multiply
    5,511.78x = 8,269.02 × 2,586.68
  4. Step 4: Simplify right side
    5,511.78x = 21,389,308.65
  5. Step 5: Solve for x
    x = 21,389,308.65/5,511.78
  6. Step 6: Final answer
    x = 3,880.65

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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.