Home / 3,389.86-5,084.88-1,831.06

Finding the Fourth Proportional to 3,389.86, 5,084.88 and 1,831.06

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Solution

The fourth proportional to 3,389.86, 5,084.88 and 1,831.06 is: 2,746.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.86 : 5,084.88 = 1,831.06 : x
  2. Step 2: Convert to fraction form
    3,389.86/5,084.88 = 1,831.06/x
  3. Step 3: Cross multiply
    3,389.86x = 5,084.88 × 1,831.06
  4. Step 4: Simplify right side
    3,389.86x = 9,310,720.37
  5. Step 5: Solve for x
    x = 9,310,720.37/3,389.86
  6. Step 6: Final answer
    x = 2,746.64

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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.