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Finding the Fourth Proportional to 3,491.60, 5,226.60 and 3,102.80

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Solution

The fourth proportional to 3,491.60, 5,226.60 and 3,102.80 is: 4,644.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.60 : 5,226.60 = 3,102.80 : x
  2. Step 2: Convert to fraction form
    3,491.60/5,226.60 = 3,102.80/x
  3. Step 3: Cross multiply
    3,491.60x = 5,226.60 × 3,102.80
  4. Step 4: Simplify right side
    3,491.60x = 16,217,094.48
  5. Step 5: Solve for x
    x = 16,217,094.48/3,491.60
  6. Step 6: Final answer
    x = 4,644.60

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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.