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Finding the Fourth Proportional to 6,422.94, 8,864.79 and 3,734.99

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Solution

The fourth proportional to 6,422.94, 8,864.79 and 3,734.99 is: 5,154.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,422.94 : 8,864.79 = 3,734.99 : x
  2. Step 2: Convert to fraction form
    6,422.94/8,864.79 = 3,734.99/x
  3. Step 3: Cross multiply
    6,422.94x = 8,864.79 × 3,734.99
  4. Step 4: Simplify right side
    6,422.94x = 33,109,893.54
  5. Step 5: Solve for x
    x = 33,109,893.54/6,422.94
  6. Step 6: Final answer
    x = 5,154.94

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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.