Home / 2,816.49-3,886.98-1,637.79

Finding the Fourth Proportional to 2,816.49, 3,886.98 and 1,637.79

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Solution

The fourth proportional to 2,816.49, 3,886.98 and 1,637.79 is: 2,260.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.49 : 3,886.98 = 1,637.79 : x
  2. Step 2: Convert to fraction form
    2,816.49/3,886.98 = 1,637.79/x
  3. Step 3: Cross multiply
    2,816.49x = 3,886.98 × 1,637.79
  4. Step 4: Simplify right side
    2,816.49x = 6,366,056.97
  5. Step 5: Solve for x
    x = 6,366,056.97/2,816.49
  6. Step 6: Final answer
    x = 2,260.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.