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Finding the Fourth Proportional to 5,753.84, 7,941.20 and 3,396.20

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Solution

The fourth proportional to 5,753.84, 7,941.20 and 3,396.20 is: 4,687.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,753.84 : 7,941.20 = 3,396.20 : x
  2. Step 2: Convert to fraction form
    5,753.84/7,941.20 = 3,396.20/x
  3. Step 3: Cross multiply
    5,753.84x = 7,941.20 × 3,396.20
  4. Step 4: Simplify right side
    5,753.84x = 26,969,903.44
  5. Step 5: Solve for x
    x = 26,969,903.44/5,753.84
  6. Step 6: Final answer
    x = 4,687.29

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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.