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Finding the Fourth Proportional to 6,883.52, 10,328.16 and 2,991.20

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Solution

The fourth proportional to 6,883.52, 10,328.16 and 2,991.20 is: 4,488.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,883.52 : 10,328.16 = 2,991.20 : x
  2. Step 2: Convert to fraction form
    6,883.52/10,328.16 = 2,991.20/x
  3. Step 3: Cross multiply
    6,883.52x = 10,328.16 × 2,991.20
  4. Step 4: Simplify right side
    6,883.52x = 30,893,592.19
  5. Step 5: Solve for x
    x = 30,893,592.19/6,883.52
  6. Step 6: Final answer
    x = 4,488.05

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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.