Home / 4,919.19-6,786.35-2,928.63

Finding the Fourth Proportional to 4,919.19, 6,786.35 and 2,928.63

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Solution

The fourth proportional to 4,919.19, 6,786.35 and 2,928.63 is: 4,040.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.19 : 6,786.35 = 2,928.63 : x
  2. Step 2: Convert to fraction form
    4,919.19/6,786.35 = 2,928.63/x
  3. Step 3: Cross multiply
    4,919.19x = 6,786.35 × 2,928.63
  4. Step 4: Simplify right side
    4,919.19x = 19,874,693.56
  5. Step 5: Solve for x
    x = 19,874,693.56/4,919.19
  6. Step 6: Final answer
    x = 4,040.24

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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.