Home / 2,725.16-4,087.74-1,905.02

Finding the Fourth Proportional to 2,725.16, 4,087.74 and 1,905.02

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Solution

The fourth proportional to 2,725.16, 4,087.74 and 1,905.02 is: 2,857.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.16 : 4,087.74 = 1,905.02 : x
  2. Step 2: Convert to fraction form
    2,725.16/4,087.74 = 1,905.02/x
  3. Step 3: Cross multiply
    2,725.16x = 4,087.74 × 1,905.02
  4. Step 4: Simplify right side
    2,725.16x = 7,787,226.45
  5. Step 5: Solve for x
    x = 7,787,226.45/2,725.16
  6. Step 6: Final answer
    x = 2,857.53

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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.