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Finding the Fourth Proportional to 6,307.20, 9,463.80 and 4,228.20

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Solution

The fourth proportional to 6,307.20, 9,463.80 and 4,228.20 is: 6,344.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,307.20 : 9,463.80 = 4,228.20 : x
  2. Step 2: Convert to fraction form
    6,307.20/9,463.80 = 4,228.20/x
  3. Step 3: Cross multiply
    6,307.20x = 9,463.80 × 4,228.20
  4. Step 4: Simplify right side
    6,307.20x = 40,014,839.16
  5. Step 5: Solve for x
    x = 40,014,839.16/6,307.20
  6. Step 6: Final answer
    x = 6,344.31

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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.