Home / 3,144.90-4,716.14-1,389.81

Finding the Fourth Proportional to 3,144.90, 4,716.14 and 1,389.81

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Solution

The fourth proportional to 3,144.90, 4,716.14 and 1,389.81 is: 2,084.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.90 : 4,716.14 = 1,389.81 : x
  2. Step 2: Convert to fraction form
    3,144.90/4,716.14 = 1,389.81/x
  3. Step 3: Cross multiply
    3,144.90x = 4,716.14 × 1,389.81
  4. Step 4: Simplify right side
    3,144.90x = 6,554,531.58
  5. Step 5: Solve for x
    x = 6,554,531.58/3,144.90
  6. Step 6: Final answer
    x = 2,084.18

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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.