Home / 2,818.09-4,229.41-2,126.45

Finding the Fourth Proportional to 2,818.09, 4,229.41 and 2,126.45

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Solution

The fourth proportional to 2,818.09, 4,229.41 and 2,126.45 is: 3,191.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.09 : 4,229.41 = 2,126.45 : x
  2. Step 2: Convert to fraction form
    2,818.09/4,229.41 = 2,126.45/x
  3. Step 3: Cross multiply
    2,818.09x = 4,229.41 × 2,126.45
  4. Step 4: Simplify right side
    2,818.09x = 8,993,597.12
  5. Step 5: Solve for x
    x = 8,993,597.12/2,818.09
  6. Step 6: Final answer
    x = 3,191.39

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1.5x scale

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.