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Finding the Fourth Proportional to 6,487.62, 8,953.24 and 3,968.94

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Solution

The fourth proportional to 6,487.62, 8,953.24 and 3,968.94 is: 5,477.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,487.62 : 8,953.24 = 3,968.94 : x
  2. Step 2: Convert to fraction form
    6,487.62/8,953.24 = 3,968.94/x
  3. Step 3: Cross multiply
    6,487.62x = 8,953.24 × 3,968.94
  4. Step 4: Simplify right side
    6,487.62x = 35,534,827.60
  5. Step 5: Solve for x
    x = 35,534,827.60/6,487.62
  6. Step 6: Final answer
    x = 5,477.33

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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.