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Finding the Fourth Proportional to 3,353.31, 5,007.38 and 2,738.21

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Solution

The fourth proportional to 3,353.31, 5,007.38 and 2,738.21 is: 4,088.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,353.31 : 5,007.38 = 2,738.21 : x
  2. Step 2: Convert to fraction form
    3,353.31/5,007.38 = 2,738.21/x
  3. Step 3: Cross multiply
    3,353.31x = 5,007.38 × 2,738.21
  4. Step 4: Simplify right side
    3,353.31x = 13,711,219.26
  5. Step 5: Solve for x
    x = 13,711,219.26/3,353.31
  6. Step 6: Final answer
    x = 4,088.86

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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.