Home / 1,812.46-2,498.44-1,418.80

Finding the Fourth Proportional to 1,812.46, 2,498.44 and 1,418.80

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Solution

The fourth proportional to 1,812.46, 2,498.44 and 1,418.80 is: 1,955.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.46 : 2,498.44 = 1,418.80 : x
  2. Step 2: Convert to fraction form
    1,812.46/2,498.44 = 1,418.80/x
  3. Step 3: Cross multiply
    1,812.46x = 2,498.44 × 1,418.80
  4. Step 4: Simplify right side
    1,812.46x = 3,544,786.67
  5. Step 5: Solve for x
    x = 3,544,786.67/1,812.46
  6. Step 6: Final answer
    x = 1,955.79

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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.