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Finding the Fourth Proportional to 6,662.30, 9,994.87 and 1,982.33

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Solution

The fourth proportional to 6,662.30, 9,994.87 and 1,982.33 is: 2,973.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,662.30 : 9,994.87 = 1,982.33 : x
  2. Step 2: Convert to fraction form
    6,662.30/9,994.87 = 1,982.33/x
  3. Step 3: Cross multiply
    6,662.30x = 9,994.87 × 1,982.33
  4. Step 4: Simplify right side
    6,662.30x = 19,813,080.67
  5. Step 5: Solve for x
    x = 19,813,080.67/6,662.30
  6. Step 6: Final answer
    x = 2,973.91

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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.