Home / 2,851.86-4,277.88-1,270.74

Finding the Fourth Proportional to 2,851.86, 4,277.88 and 1,270.74

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Solution

The fourth proportional to 2,851.86, 4,277.88 and 1,270.74 is: 1,906.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.86 : 4,277.88 = 1,270.74 : x
  2. Step 2: Convert to fraction form
    2,851.86/4,277.88 = 1,270.74/x
  3. Step 3: Cross multiply
    2,851.86x = 4,277.88 × 1,270.74
  4. Step 4: Simplify right side
    2,851.86x = 5,436,073.23
  5. Step 5: Solve for x
    x = 5,436,073.23/2,851.86
  6. Step 6: Final answer
    x = 1,906.15

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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.