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Finding the Fourth Proportional to 3,289.68, 4,539.96 and 1,892.88

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Solution

The fourth proportional to 3,289.68, 4,539.96 and 1,892.88 is: 2,612.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.68 : 4,539.96 = 1,892.88 : x
  2. Step 2: Convert to fraction form
    3,289.68/4,539.96 = 1,892.88/x
  3. Step 3: Cross multiply
    3,289.68x = 4,539.96 × 1,892.88
  4. Step 4: Simplify right side
    3,289.68x = 8,593,599.48
  5. Step 5: Solve for x
    x = 8,593,599.48/3,289.68
  6. Step 6: Final answer
    x = 2,612.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.