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Finding the Fourth Proportional to 6,634.40, 9,955.08 and 2,939.18

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Solution

The fourth proportional to 6,634.40, 9,955.08 and 2,939.18 is: 4,410.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,634.40 : 9,955.08 = 2,939.18 : x
  2. Step 2: Convert to fraction form
    6,634.40/9,955.08 = 2,939.18/x
  3. Step 3: Cross multiply
    6,634.40x = 9,955.08 × 2,939.18
  4. Step 4: Simplify right side
    6,634.40x = 29,259,772.03
  5. Step 5: Solve for x
    x = 29,259,772.03/6,634.40
  6. Step 6: Final answer
    x = 4,410.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.