Home / 5,157.12-7,728.96-2,077.44

Finding the Fourth Proportional to 5,157.12, 7,728.96 and 2,077.44

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Solution

The fourth proportional to 5,157.12, 7,728.96 and 2,077.44 is: 3,113.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.12 : 7,728.96 = 2,077.44 : x
  2. Step 2: Convert to fraction form
    5,157.12/7,728.96 = 2,077.44/x
  3. Step 3: Cross multiply
    5,157.12x = 7,728.96 × 2,077.44
  4. Step 4: Simplify right side
    5,157.12x = 16,056,450.66
  5. Step 5: Solve for x
    x = 16,056,450.66/5,157.12
  6. Step 6: Final answer
    x = 3,113.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.