Home / 2,811.94-4,215.76-1,701.11

Finding the Fourth Proportional to 2,811.94, 4,215.76 and 1,701.11

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Solution

The fourth proportional to 2,811.94, 4,215.76 and 1,701.11 is: 2,550.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.94 : 4,215.76 = 1,701.11 : x
  2. Step 2: Convert to fraction form
    2,811.94/4,215.76 = 1,701.11/x
  3. Step 3: Cross multiply
    2,811.94x = 4,215.76 × 1,701.11
  4. Step 4: Simplify right side
    2,811.94x = 7,171,477.78
  5. Step 5: Solve for x
    x = 7,171,477.78/2,811.94
  6. Step 6: Final answer
    x = 2,550.37

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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.