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Finding the Fourth Proportional to 5,496.60, 8,220.90 and 4,915.80

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Solution

The fourth proportional to 5,496.60, 8,220.90 and 4,915.80 is: 7,352.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,496.60 : 8,220.90 = 4,915.80 : x
  2. Step 2: Convert to fraction form
    5,496.60/8,220.90 = 4,915.80/x
  3. Step 3: Cross multiply
    5,496.60x = 8,220.90 × 4,915.80
  4. Step 4: Simplify right side
    5,496.60x = 40,412,300.22
  5. Step 5: Solve for x
    x = 40,412,300.22/5,496.60
  6. Step 6: Final answer
    x = 7,352.24

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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.