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Finding the Fourth Proportional to 5,602.80, 7,731.80 and 3,245.16

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Solution

The fourth proportional to 5,602.80, 7,731.80 and 3,245.16 is: 4,478.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,602.80 : 7,731.80 = 3,245.16 : x
  2. Step 2: Convert to fraction form
    5,602.80/7,731.80 = 3,245.16/x
  3. Step 3: Cross multiply
    5,602.80x = 7,731.80 × 3,245.16
  4. Step 4: Simplify right side
    5,602.80x = 25,090,971.28
  5. Step 5: Solve for x
    x = 25,090,971.28/5,602.80
  6. Step 6: Final answer
    x = 4,478.29

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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.