Home / 2,836.21-3,914.14-1,577.54

Finding the Fourth Proportional to 2,836.21, 3,914.14 and 1,577.54

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Solution

The fourth proportional to 2,836.21, 3,914.14 and 1,577.54 is: 2,177.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.21 : 3,914.14 = 1,577.54 : x
  2. Step 2: Convert to fraction form
    2,836.21/3,914.14 = 1,577.54/x
  3. Step 3: Cross multiply
    2,836.21x = 3,914.14 × 1,577.54
  4. Step 4: Simplify right side
    2,836.21x = 6,174,704.53
  5. Step 5: Solve for x
    x = 6,174,704.53/2,836.21
  6. Step 6: Final answer
    x = 2,177.10

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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.