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Finding the Fourth Proportional to 5,922.80, 8,884.20 and 5,307.20

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Solution

The fourth proportional to 5,922.80, 8,884.20 and 5,307.20 is: 7,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,922.80 : 8,884.20 = 5,307.20 : x
  2. Step 2: Convert to fraction form
    5,922.80/8,884.20 = 5,307.20/x
  3. Step 3: Cross multiply
    5,922.80x = 8,884.20 × 5,307.20
  4. Step 4: Simplify right side
    5,922.80x = 47,150,226.24
  5. Step 5: Solve for x
    x = 47,150,226.24/5,922.80
  6. Step 6: Final answer
    x = 7,960.80

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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.