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Finding the Fourth Proportional to 5,370.80, 8,056.20 and 5,226.80

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Solution

The fourth proportional to 5,370.80, 8,056.20 and 5,226.80 is: 7,840.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,370.80 : 8,056.20 = 5,226.80 : x
  2. Step 2: Convert to fraction form
    5,370.80/8,056.20 = 5,226.80/x
  3. Step 3: Cross multiply
    5,370.80x = 8,056.20 × 5,226.80
  4. Step 4: Simplify right side
    5,370.80x = 42,108,146.16
  5. Step 5: Solve for x
    x = 42,108,146.16/5,370.80
  6. Step 6: Final answer
    x = 7,840.20

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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.