Home / 2,825.66-3,900.63-2,648.54

Finding the Fourth Proportional to 2,825.66, 3,900.63 and 2,648.54

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Solution

The fourth proportional to 2,825.66, 3,900.63 and 2,648.54 is: 3,656.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.66 : 3,900.63 = 2,648.54 : x
  2. Step 2: Convert to fraction form
    2,825.66/3,900.63 = 2,648.54/x
  3. Step 3: Cross multiply
    2,825.66x = 3,900.63 × 2,648.54
  4. Step 4: Simplify right side
    2,825.66x = 10,330,974.58
  5. Step 5: Solve for x
    x = 10,330,974.58/2,825.66
  6. Step 6: Final answer
    x = 3,656.13

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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.