Home / 2,618.28-3,924.09-1,228.56

Finding the Fourth Proportional to 2,618.28, 3,924.09 and 1,228.56

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Solution

The fourth proportional to 2,618.28, 3,924.09 and 1,228.56 is: 1,841.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.28 : 3,924.09 = 1,228.56 : x
  2. Step 2: Convert to fraction form
    2,618.28/3,924.09 = 1,228.56/x
  3. Step 3: Cross multiply
    2,618.28x = 3,924.09 × 1,228.56
  4. Step 4: Simplify right side
    2,618.28x = 4,820,980.01
  5. Step 5: Solve for x
    x = 4,820,980.01/2,618.28
  6. Step 6: Final answer
    x = 1,841.28

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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.