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Finding the Fourth Proportional to 6,162.88, 8,503.60 and 3,509.28

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Solution

The fourth proportional to 6,162.88, 8,503.60 and 3,509.28 is: 4,842.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,162.88 : 8,503.60 = 3,509.28 : x
  2. Step 2: Convert to fraction form
    6,162.88/8,503.60 = 3,509.28/x
  3. Step 3: Cross multiply
    6,162.88x = 8,503.60 × 3,509.28
  4. Step 4: Simplify right side
    6,162.88x = 29,841,513.41
  5. Step 5: Solve for x
    x = 29,841,513.41/6,162.88
  6. Step 6: Final answer
    x = 4,842.14

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Why These Related Problems?

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