Home / 3,465.24-4,778.36-2,831.02

Finding the Fourth Proportional to 3,465.24, 4,778.36 and 2,831.02

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Solution

The fourth proportional to 3,465.24, 4,778.36 and 2,831.02 is: 3,903.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.24 : 4,778.36 = 2,831.02 : x
  2. Step 2: Convert to fraction form
    3,465.24/4,778.36 = 2,831.02/x
  3. Step 3: Cross multiply
    3,465.24x = 4,778.36 × 2,831.02
  4. Step 4: Simplify right side
    3,465.24x = 13,527,632.73
  5. Step 5: Solve for x
    x = 13,527,632.73/3,465.24
  6. Step 6: Final answer
    x = 3,903.81

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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.