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Finding the Fourth Proportional to 5,235.22, 7,224.51 and 2,877.31

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Solution

The fourth proportional to 5,235.22, 7,224.51 and 2,877.31 is: 3,970.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,235.22 : 7,224.51 = 2,877.31 : x
  2. Step 2: Convert to fraction form
    5,235.22/7,224.51 = 2,877.31/x
  3. Step 3: Cross multiply
    5,235.22x = 7,224.51 × 2,877.31
  4. Step 4: Simplify right side
    5,235.22x = 20,787,154.87
  5. Step 5: Solve for x
    x = 20,787,154.87/5,235.22
  6. Step 6: Final answer
    x = 3,970.64

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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.