Home / 2,859.18-3,946.60-2,198.22

Finding the Fourth Proportional to 2,859.18, 3,946.60 and 2,198.22

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Solution

The fourth proportional to 2,859.18, 3,946.60 and 2,198.22 is: 3,034.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.18 : 3,946.60 = 2,198.22 : x
  2. Step 2: Convert to fraction form
    2,859.18/3,946.60 = 2,198.22/x
  3. Step 3: Cross multiply
    2,859.18x = 3,946.60 × 2,198.22
  4. Step 4: Simplify right side
    2,859.18x = 8,675,495.05
  5. Step 5: Solve for x
    x = 8,675,495.05/2,859.18
  6. Step 6: Final answer
    x = 3,034.26

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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.