Home / 5,515.86-8,275-1,817.94

Finding the Fourth Proportional to 5,515.86, 8,275 and 1,817.94

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Solution

The fourth proportional to 5,515.86, 8,275 and 1,817.94 is: 2,727.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.86 : 8,275 = 1,817.94 : x
  2. Step 2: Convert to fraction form
    5,515.86/8,275 = 1,817.94/x
  3. Step 3: Cross multiply
    5,515.86x = 8,275 × 1,817.94
  4. Step 4: Simplify right side
    5,515.86x = 15,043,453.50
  5. Step 5: Solve for x
    x = 15,043,453.50/5,515.86
  6. Step 6: Final answer
    x = 2,727.31

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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.