Home / 3,029.14-4,181.79-1,911.70

Finding the Fourth Proportional to 3,029.14, 4,181.79 and 1,911.70

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Solution

The fourth proportional to 3,029.14, 4,181.79 and 1,911.70 is: 2,639.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,029.14 : 4,181.79 = 1,911.70 : x
  2. Step 2: Convert to fraction form
    3,029.14/4,181.79 = 1,911.70/x
  3. Step 3: Cross multiply
    3,029.14x = 4,181.79 × 1,911.70
  4. Step 4: Simplify right side
    3,029.14x = 7,994,327.94
  5. Step 5: Solve for x
    x = 7,994,327.94/3,029.14
  6. Step 6: Final answer
    x = 2,639.14

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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.