Home / 3,219.94-4,443.65-1,822.69

Finding the Fourth Proportional to 3,219.94, 4,443.65 and 1,822.69

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Solution

The fourth proportional to 3,219.94, 4,443.65 and 1,822.69 is: 2,515.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.94 : 4,443.65 = 1,822.69 : x
  2. Step 2: Convert to fraction form
    3,219.94/4,443.65 = 1,822.69/x
  3. Step 3: Cross multiply
    3,219.94x = 4,443.65 × 1,822.69
  4. Step 4: Simplify right side
    3,219.94x = 8,099,389.87
  5. Step 5: Solve for x
    x = 8,099,389.87/3,219.94
  6. Step 6: Final answer
    x = 2,515.39

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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.