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Finding the Fourth Proportional to 3,329.60, 4,999.80 and 2,411.60

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Solution

The fourth proportional to 3,329.60, 4,999.80 and 2,411.60 is: 3,621.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,329.60 : 4,999.80 = 2,411.60 : x
  2. Step 2: Convert to fraction form
    3,329.60/4,999.80 = 2,411.60/x
  3. Step 3: Cross multiply
    3,329.60x = 4,999.80 × 2,411.60
  4. Step 4: Simplify right side
    3,329.60x = 12,057,517.68
  5. Step 5: Solve for x
    x = 12,057,517.68/3,329.60
  6. Step 6: Final answer
    x = 3,621.31

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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.