Home / 3,170.69-4,374.47-1,911.27

Finding the Fourth Proportional to 3,170.69, 4,374.47 and 1,911.27

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Solution

The fourth proportional to 3,170.69, 4,374.47 and 1,911.27 is: 2,636.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.69 : 4,374.47 = 1,911.27 : x
  2. Step 2: Convert to fraction form
    3,170.69/4,374.47 = 1,911.27/x
  3. Step 3: Cross multiply
    3,170.69x = 4,374.47 × 1,911.27
  4. Step 4: Simplify right side
    3,170.69x = 8,360,793.28
  5. Step 5: Solve for x
    x = 8,360,793.28/3,170.69
  6. Step 6: Final answer
    x = 2,636.90

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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.