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Finding the Fourth Proportional to 6,364.56, 8,783.10 and 3,880.56

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Solution

The fourth proportional to 6,364.56, 8,783.10 and 3,880.56 is: 5,355.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,364.56 : 8,783.10 = 3,880.56 : x
  2. Step 2: Convert to fraction form
    6,364.56/8,783.10 = 3,880.56/x
  3. Step 3: Cross multiply
    6,364.56x = 8,783.10 × 3,880.56
  4. Step 4: Simplify right side
    6,364.56x = 34,083,346.54
  5. Step 5: Solve for x
    x = 34,083,346.54/6,364.56
  6. Step 6: Final answer
    x = 5,355.18

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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.