Home / 7,638.09-10,539.50-4,280.64

Finding the Fourth Proportional to 7,638.09, 10,539.50 and 4,280.64

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Solution

The fourth proportional to 7,638.09, 10,539.50 and 4,280.64 is: 5,906.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.09 : 10,539.50 = 4,280.64 : x
  2. Step 2: Convert to fraction form
    7,638.09/10,539.50 = 4,280.64/x
  3. Step 3: Cross multiply
    7,638.09x = 10,539.50 × 4,280.64
  4. Step 4: Simplify right side
    7,638.09x = 45,115,783.88
  5. Step 5: Solve for x
    x = 45,115,783.88/7,638.09
  6. Step 6: Final answer
    x = 5,906.68

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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.