Home / 1,996.91-2,756.39-1,786.71

Finding the Fourth Proportional to 1,996.91, 2,756.39 and 1,786.71

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Solution

The fourth proportional to 1,996.91, 2,756.39 and 1,786.71 is: 2,466.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.91 : 2,756.39 = 1,786.71 : x
  2. Step 2: Convert to fraction form
    1,996.91/2,756.39 = 1,786.71/x
  3. Step 3: Cross multiply
    1,996.91x = 2,756.39 × 1,786.71
  4. Step 4: Simplify right side
    1,996.91x = 4,924,869.58
  5. Step 5: Solve for x
    x = 4,924,869.58/1,996.91
  6. Step 6: Final answer
    x = 2,466.25

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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.