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Finding the Fourth Proportional to 5,920.40, 8,880.60 and 5,920.40

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Solution

The fourth proportional to 5,920.40, 8,880.60 and 5,920.40 is: 8,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.40 : 8,880.60 = 5,920.40 : x
  2. Step 2: Convert to fraction form
    5,920.40/8,880.60 = 5,920.40/x
  3. Step 3: Cross multiply
    5,920.40x = 8,880.60 × 5,920.40
  4. Step 4: Simplify right side
    5,920.40x = 52,576,704.24
  5. Step 5: Solve for x
    x = 52,576,704.24/5,920.40
  6. Step 6: Final answer
    x = 8,880.60

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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.