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Finding the Fourth Proportional to 6,537.60, 9,799.20 and 3,416.40

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Solution

The fourth proportional to 6,537.60, 9,799.20 and 3,416.40 is: 5,120.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,537.60 : 9,799.20 = 3,416.40 : x
  2. Step 2: Convert to fraction form
    6,537.60/9,799.20 = 3,416.40/x
  3. Step 3: Cross multiply
    6,537.60x = 9,799.20 × 3,416.40
  4. Step 4: Simplify right side
    6,537.60x = 33,477,986.88
  5. Step 5: Solve for x
    x = 33,477,986.88/6,537.60
  6. Step 6: Final answer
    x = 5,120.84

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.