Home / 2,821.11-3,891.87-1,701.33

Finding the Fourth Proportional to 2,821.11, 3,891.87 and 1,701.33

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Solution

The fourth proportional to 2,821.11, 3,891.87 and 1,701.33 is: 2,347.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.11 : 3,891.87 = 1,701.33 : x
  2. Step 2: Convert to fraction form
    2,821.11/3,891.87 = 1,701.33/x
  3. Step 3: Cross multiply
    2,821.11x = 3,891.87 × 1,701.33
  4. Step 4: Simplify right side
    2,821.11x = 6,621,355.19
  5. Step 5: Solve for x
    x = 6,621,355.19/2,821.11
  6. Step 6: Final answer
    x = 2,347.07

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1.5x scale

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.