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Finding the Fourth Proportional to 6,351.16, 8,764.40 and 3,518.42

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Solution

The fourth proportional to 6,351.16, 8,764.40 and 3,518.42 is: 4,855.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,351.16 : 8,764.40 = 3,518.42 : x
  2. Step 2: Convert to fraction form
    6,351.16/8,764.40 = 3,518.42/x
  3. Step 3: Cross multiply
    6,351.16x = 8,764.40 × 3,518.42
  4. Step 4: Simplify right side
    6,351.16x = 30,836,840.25
  5. Step 5: Solve for x
    x = 30,836,840.25/6,351.16
  6. Step 6: Final answer
    x = 4,855.31

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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.