Home / 3,169.69-4,374.20-1,910.81

Finding the Fourth Proportional to 3,169.69, 4,374.20 and 1,910.81

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Solution

The fourth proportional to 3,169.69, 4,374.20 and 1,910.81 is: 2,636.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.69 : 4,374.20 = 1,910.81 : x
  2. Step 2: Convert to fraction form
    3,169.69/4,374.20 = 1,910.81/x
  3. Step 3: Cross multiply
    3,169.69x = 4,374.20 × 1,910.81
  4. Step 4: Simplify right side
    3,169.69x = 8,358,265.10
  5. Step 5: Solve for x
    x = 8,358,265.10/3,169.69
  6. Step 6: Final answer
    x = 2,636.93

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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.