Home / 3,205.05-4,423.14-1,878.86

Finding the Fourth Proportional to 3,205.05, 4,423.14 and 1,878.86

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Solution

The fourth proportional to 3,205.05, 4,423.14 and 1,878.86 is: 2,592.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.05 : 4,423.14 = 1,878.86 : x
  2. Step 2: Convert to fraction form
    3,205.05/4,423.14 = 1,878.86/x
  3. Step 3: Cross multiply
    3,205.05x = 4,423.14 × 1,878.86
  4. Step 4: Simplify right side
    3,205.05x = 8,310,438.70
  5. Step 5: Solve for x
    x = 8,310,438.70/3,205.05
  6. Step 6: Final answer
    x = 2,592.92

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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.