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Finding the Fourth Proportional to 3,329.90, 4,990.09 and 2,445.47

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Solution

The fourth proportional to 3,329.90, 4,990.09 and 2,445.47 is: 3,664.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,329.90 : 4,990.09 = 2,445.47 : x
  2. Step 2: Convert to fraction form
    3,329.90/4,990.09 = 2,445.47/x
  3. Step 3: Cross multiply
    3,329.90x = 4,990.09 × 2,445.47
  4. Step 4: Simplify right side
    3,329.90x = 12,203,100.47
  5. Step 5: Solve for x
    x = 12,203,100.47/3,329.90
  6. Step 6: Final answer
    x = 3,664.70

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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.