Home / 1,995.05-2,753.64-1,208.94

Finding the Fourth Proportional to 1,995.05, 2,753.64 and 1,208.94

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Solution

The fourth proportional to 1,995.05, 2,753.64 and 1,208.94 is: 1,668.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.05 : 2,753.64 = 1,208.94 : x
  2. Step 2: Convert to fraction form
    1,995.05/2,753.64 = 1,208.94/x
  3. Step 3: Cross multiply
    1,995.05x = 2,753.64 × 1,208.94
  4. Step 4: Simplify right side
    1,995.05x = 3,328,985.54
  5. Step 5: Solve for x
    x = 3,328,985.54/1,995.05
  6. Step 6: Final answer
    x = 1,668.62

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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.