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Finding the Fourth Proportional to 5,333.56, 7,999.26 and 1,438.18

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Solution

The fourth proportional to 5,333.56, 7,999.26 and 1,438.18 is: 2,156.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,333.56 : 7,999.26 = 1,438.18 : x
  2. Step 2: Convert to fraction form
    5,333.56/7,999.26 = 1,438.18/x
  3. Step 3: Cross multiply
    5,333.56x = 7,999.26 × 1,438.18
  4. Step 4: Simplify right side
    5,333.56x = 11,504,375.75
  5. Step 5: Solve for x
    x = 11,504,375.75/5,333.56
  6. Step 6: Final answer
    x = 2,156.98

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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.