Home / 3,511.40-5,252.70-3,165.80

Finding the Fourth Proportional to 3,511.40, 5,252.70 and 3,165.80

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Solution

The fourth proportional to 3,511.40, 5,252.70 and 3,165.80 is: 4,735.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.40 : 5,252.70 = 3,165.80 : x
  2. Step 2: Convert to fraction form
    3,511.40/5,252.70 = 3,165.80/x
  3. Step 3: Cross multiply
    3,511.40x = 5,252.70 × 3,165.80
  4. Step 4: Simplify right side
    3,511.40x = 16,628,997.66
  5. Step 5: Solve for x
    x = 16,628,997.66/3,511.40
  6. Step 6: Final answer
    x = 4,735.72

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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.