Home / 2,851.54-4,270.25-1,808.35

Finding the Fourth Proportional to 2,851.54, 4,270.25 and 1,808.35

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Solution

The fourth proportional to 2,851.54, 4,270.25 and 1,808.35 is: 2,708.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.54 : 4,270.25 = 1,808.35 : x
  2. Step 2: Convert to fraction form
    2,851.54/4,270.25 = 1,808.35/x
  3. Step 3: Cross multiply
    2,851.54x = 4,270.25 × 1,808.35
  4. Step 4: Simplify right side
    2,851.54x = 7,722,100.43
  5. Step 5: Solve for x
    x = 7,722,100.43/2,851.54
  6. Step 6: Final answer
    x = 2,708.05

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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.