Home / 2,919.09-4,379.67-1,822.19

Finding the Fourth Proportional to 2,919.09, 4,379.67 and 1,822.19

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Solution

The fourth proportional to 2,919.09, 4,379.67 and 1,822.19 is: 2,733.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.09 : 4,379.67 = 1,822.19 : x
  2. Step 2: Convert to fraction form
    2,919.09/4,379.67 = 1,822.19/x
  3. Step 3: Cross multiply
    2,919.09x = 4,379.67 × 1,822.19
  4. Step 4: Simplify right side
    2,919.09x = 7,980,568.98
  5. Step 5: Solve for x
    x = 7,980,568.98/2,919.09
  6. Step 6: Final answer
    x = 2,733.92

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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.