Home / 5,515.17-8,273.78-1,817.55

Finding the Fourth Proportional to 5,515.17, 8,273.78 and 1,817.55

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Solution

The fourth proportional to 5,515.17, 8,273.78 and 1,817.55 is: 2,726.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.17 : 8,273.78 = 1,817.55 : x
  2. Step 2: Convert to fraction form
    5,515.17/8,273.78 = 1,817.55/x
  3. Step 3: Cross multiply
    5,515.17x = 8,273.78 × 1,817.55
  4. Step 4: Simplify right side
    5,515.17x = 15,037,999.75
  5. Step 5: Solve for x
    x = 15,037,999.75/5,515.17
  6. Step 6: Final answer
    x = 2,726.66

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1.5x scale

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.