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Finding the Fourth Proportional to 3,679.84, 5,521.43 and 3,368.39

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Solution

The fourth proportional to 3,679.84, 5,521.43 and 3,368.39 is: 5,054.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.84 : 5,521.43 = 3,368.39 : x
  2. Step 2: Convert to fraction form
    3,679.84/5,521.43 = 3,368.39/x
  3. Step 3: Cross multiply
    3,679.84x = 5,521.43 × 3,368.39
  4. Step 4: Simplify right side
    3,679.84x = 18,598,310.41
  5. Step 5: Solve for x
    x = 18,598,310.41/3,679.84
  6. Step 6: Final answer
    x = 5,054.11

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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.