Home / 3,831.60-5,290.98-2,417.81

Finding the Fourth Proportional to 3,831.60, 5,290.98 and 2,417.81

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Solution

The fourth proportional to 3,831.60, 5,290.98 and 2,417.81 is: 3,338.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.60 : 5,290.98 = 2,417.81 : x
  2. Step 2: Convert to fraction form
    3,831.60/5,290.98 = 2,417.81/x
  3. Step 3: Cross multiply
    3,831.60x = 5,290.98 × 2,417.81
  4. Step 4: Simplify right side
    3,831.60x = 12,792,584.35
  5. Step 5: Solve for x
    x = 12,792,584.35/3,831.60
  6. Step 6: Final answer
    x = 3,338.71

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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.