Home / 5,515.36-8,272.97-2,591.60

Finding the Fourth Proportional to 5,515.36, 8,272.97 and 2,591.60

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Solution

The fourth proportional to 5,515.36, 8,272.97 and 2,591.60 is: 3,887.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.36 : 8,272.97 = 2,591.60 : x
  2. Step 2: Convert to fraction form
    5,515.36/8,272.97 = 2,591.60/x
  3. Step 3: Cross multiply
    5,515.36x = 8,272.97 × 2,591.60
  4. Step 4: Simplify right side
    5,515.36x = 21,440,184.45
  5. Step 5: Solve for x
    x = 21,440,184.45/5,515.36
  6. Step 6: Final answer
    x = 3,887.36

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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.