Home / 1,816.96-2,512.43-1,443.28

Finding the Fourth Proportional to 1,816.96, 2,512.43 and 1,443.28

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Solution

The fourth proportional to 1,816.96, 2,512.43 and 1,443.28 is: 1,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.96 : 2,512.43 = 1,443.28 : x
  2. Step 2: Convert to fraction form
    1,816.96/2,512.43 = 1,443.28/x
  3. Step 3: Cross multiply
    1,816.96x = 2,512.43 × 1,443.28
  4. Step 4: Simplify right side
    1,816.96x = 3,626,139.97
  5. Step 5: Solve for x
    x = 3,626,139.97/1,816.96
  6. Step 6: Final answer
    x = 1,995.72

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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.