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Finding the Fourth Proportional to 6,441.81, 8,889.39 and 3,608.84

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Solution

The fourth proportional to 6,441.81, 8,889.39 and 3,608.84 is: 4,980.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,441.81 : 8,889.39 = 3,608.84 : x
  2. Step 2: Convert to fraction form
    6,441.81/8,889.39 = 3,608.84/x
  3. Step 3: Cross multiply
    6,441.81x = 8,889.39 × 3,608.84
  4. Step 4: Simplify right side
    6,441.81x = 32,080,341.76
  5. Step 5: Solve for x
    x = 32,080,341.76/6,441.81
  6. Step 6: Final answer
    x = 4,980.02

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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.