Home / 2,806.56-3,873.42-1,628.28

Finding the Fourth Proportional to 2,806.56, 3,873.42 and 1,628.28

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Solution

The fourth proportional to 2,806.56, 3,873.42 and 1,628.28 is: 2,247.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.56 : 3,873.42 = 1,628.28 : x
  2. Step 2: Convert to fraction form
    2,806.56/3,873.42 = 1,628.28/x
  3. Step 3: Cross multiply
    2,806.56x = 3,873.42 × 1,628.28
  4. Step 4: Simplify right side
    2,806.56x = 6,307,012.32
  5. Step 5: Solve for x
    x = 6,307,012.32/2,806.56
  6. Step 6: Final answer
    x = 2,247.24

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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.