Home / 3,205.07-4,423-1,788.85

Finding the Fourth Proportional to 3,205.07, 4,423 and 1,788.85

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Solution

The fourth proportional to 3,205.07, 4,423 and 1,788.85 is: 2,468.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.07 : 4,423 = 1,788.85 : x
  2. Step 2: Convert to fraction form
    3,205.07/4,423 = 1,788.85/x
  3. Step 3: Cross multiply
    3,205.07x = 4,423 × 1,788.85
  4. Step 4: Simplify right side
    3,205.07x = 7,912,083.55
  5. Step 5: Solve for x
    x = 7,912,083.55/3,205.07
  6. Step 6: Final answer
    x = 2,468.61

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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.