Home / 5,515.35-8,272.12-1,817.63

Finding the Fourth Proportional to 5,515.35, 8,272.12 and 1,817.63

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Solution

The fourth proportional to 5,515.35, 8,272.12 and 1,817.63 is: 2,726.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.35 : 8,272.12 = 1,817.63 : x
  2. Step 2: Convert to fraction form
    5,515.35/8,272.12 = 1,817.63/x
  3. Step 3: Cross multiply
    5,515.35x = 8,272.12 × 1,817.63
  4. Step 4: Simplify right side
    5,515.35x = 15,035,653.48
  5. Step 5: Solve for x
    x = 15,035,653.48/5,515.35
  6. Step 6: Final answer
    x = 2,726.15

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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.