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Finding the Fourth Proportional to 3,253.60, 4,880.22 and 1,403.80

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Solution

The fourth proportional to 3,253.60, 4,880.22 and 1,403.80 is: 2,105.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,253.60 : 4,880.22 = 1,403.80 : x
  2. Step 2: Convert to fraction form
    3,253.60/4,880.22 = 1,403.80/x
  3. Step 3: Cross multiply
    3,253.60x = 4,880.22 × 1,403.80
  4. Step 4: Simplify right side
    3,253.60x = 6,850,852.84
  5. Step 5: Solve for x
    x = 6,850,852.84/3,253.60
  6. Step 6: Final answer
    x = 2,105.62

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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.