Home / 5,515.12-8,272.58-1,817.38

Finding the Fourth Proportional to 5,515.12, 8,272.58 and 1,817.38

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Solution

The fourth proportional to 5,515.12, 8,272.58 and 1,817.38 is: 2,726.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.12 : 8,272.58 = 1,817.38 : x
  2. Step 2: Convert to fraction form
    5,515.12/8,272.58 = 1,817.38/x
  3. Step 3: Cross multiply
    5,515.12x = 8,272.58 × 1,817.38
  4. Step 4: Simplify right side
    5,515.12x = 15,034,421.44
  5. Step 5: Solve for x
    x = 15,034,421.44/5,515.12
  6. Step 6: Final answer
    x = 2,726.04

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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.