Home / 2,836.79-3,914.84-1,577.93

Finding the Fourth Proportional to 2,836.79, 3,914.84 and 1,577.93

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Solution

The fourth proportional to 2,836.79, 3,914.84 and 1,577.93 is: 2,177.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.79 : 3,914.84 = 1,577.93 : x
  2. Step 2: Convert to fraction form
    2,836.79/3,914.84 = 1,577.93/x
  3. Step 3: Cross multiply
    2,836.79x = 3,914.84 × 1,577.93
  4. Step 4: Simplify right side
    2,836.79x = 6,177,335.59
  5. Step 5: Solve for x
    x = 6,177,335.59/2,836.79
  6. Step 6: Final answer
    x = 2,177.58

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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.