Home / 3,205.42-4,423.23-1,878.94

Finding the Fourth Proportional to 3,205.42, 4,423.23 and 1,878.94

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Solution

The fourth proportional to 3,205.42, 4,423.23 and 1,878.94 is: 2,592.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.42 : 4,423.23 = 1,878.94 : x
  2. Step 2: Convert to fraction form
    3,205.42/4,423.23 = 1,878.94/x
  3. Step 3: Cross multiply
    3,205.42x = 4,423.23 × 1,878.94
  4. Step 4: Simplify right side
    3,205.42x = 8,310,983.78
  5. Step 5: Solve for x
    x = 8,310,983.78/3,205.42
  6. Step 6: Final answer
    x = 2,592.79

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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.