Home / 2,806.83-3,873.56-1,628.55

Finding the Fourth Proportional to 2,806.83, 3,873.56 and 1,628.55

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Solution

The fourth proportional to 2,806.83, 3,873.56 and 1,628.55 is: 2,247.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.83 : 3,873.56 = 1,628.55 : x
  2. Step 2: Convert to fraction form
    2,806.83/3,873.56 = 1,628.55/x
  3. Step 3: Cross multiply
    2,806.83x = 3,873.56 × 1,628.55
  4. Step 4: Simplify right side
    2,806.83x = 6,308,278.00
  5. Step 5: Solve for x
    x = 6,308,278.00/2,806.83
  6. Step 6: Final answer
    x = 2,247.47

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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.