Home / 2,556.16-3,831.36-1,258.54

Finding the Fourth Proportional to 2,556.16, 3,831.36 and 1,258.54

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Solution

The fourth proportional to 2,556.16, 3,831.36 and 1,258.54 is: 1,886.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,556.16 : 3,831.36 = 1,258.54 : x
  2. Step 2: Convert to fraction form
    2,556.16/3,831.36 = 1,258.54/x
  3. Step 3: Cross multiply
    2,556.16x = 3,831.36 × 1,258.54
  4. Step 4: Simplify right side
    2,556.16x = 4,821,919.81
  5. Step 5: Solve for x
    x = 4,821,919.81/2,556.16
  6. Step 6: Final answer
    x = 1,886.39

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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.