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Finding the Fourth Proportional to 6,463.50, 8,918.24 and 3,809.94

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Solution

The fourth proportional to 6,463.50, 8,918.24 and 3,809.94 is: 5,256.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,463.50 : 8,918.24 = 3,809.94 : x
  2. Step 2: Convert to fraction form
    6,463.50/8,918.24 = 3,809.94/x
  3. Step 3: Cross multiply
    6,463.50x = 8,918.24 × 3,809.94
  4. Step 4: Simplify right side
    6,463.50x = 33,977,940.26
  5. Step 5: Solve for x
    x = 33,977,940.26/6,463.50
  6. Step 6: Final answer
    x = 5,256.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.