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Finding the Fourth Proportional to 3,809.02, 5,671.91 and 3,668.90

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Solution

The fourth proportional to 3,809.02, 5,671.91 and 3,668.90 is: 5,463.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.02 : 5,671.91 = 3,668.90 : x
  2. Step 2: Convert to fraction form
    3,809.02/5,671.91 = 3,668.90/x
  3. Step 3: Cross multiply
    3,809.02x = 5,671.91 × 3,668.90
  4. Step 4: Simplify right side
    3,809.02x = 20,809,651.41
  5. Step 5: Solve for x
    x = 20,809,651.41/3,809.02
  6. Step 6: Final answer
    x = 5,463.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.