Home / 3,124.69-4,310.77-2,005.39

Finding the Fourth Proportional to 3,124.69, 4,310.77 and 2,005.39

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Solution

The fourth proportional to 3,124.69, 4,310.77 and 2,005.39 is: 2,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.69 : 4,310.77 = 2,005.39 : x
  2. Step 2: Convert to fraction form
    3,124.69/4,310.77 = 2,005.39/x
  3. Step 3: Cross multiply
    3,124.69x = 4,310.77 × 2,005.39
  4. Step 4: Simplify right side
    3,124.69x = 8,644,775.05
  5. Step 5: Solve for x
    x = 8,644,775.05/3,124.69
  6. Step 6: Final answer
    x = 2,766.60

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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.