Home / 2,151.69-3,221.04-1,946.37

Finding the Fourth Proportional to 2,151.69, 3,221.04 and 1,946.37

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Solution

The fourth proportional to 2,151.69, 3,221.04 and 1,946.37 is: 2,913.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.69 : 3,221.04 = 1,946.37 : x
  2. Step 2: Convert to fraction form
    2,151.69/3,221.04 = 1,946.37/x
  3. Step 3: Cross multiply
    2,151.69x = 3,221.04 × 1,946.37
  4. Step 4: Simplify right side
    2,151.69x = 6,269,335.62
  5. Step 5: Solve for x
    x = 6,269,335.62/2,151.69
  6. Step 6: Final answer
    x = 2,913.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.