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Finding the Fourth Proportional to 5,602.79, 7,731.39 and 3,245.09

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Solution

The fourth proportional to 5,602.79, 7,731.39 and 3,245.09 is: 4,477.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,602.79 : 7,731.39 = 3,245.09 : x
  2. Step 2: Convert to fraction form
    5,602.79/7,731.39 = 3,245.09/x
  3. Step 3: Cross multiply
    5,602.79x = 7,731.39 × 3,245.09
  4. Step 4: Simplify right side
    5,602.79x = 25,089,017.72
  5. Step 5: Solve for x
    x = 25,089,017.72/5,602.79
  6. Step 6: Final answer
    x = 4,477.95

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.