Home / 1,934.01-2,668.55-1,188.09

Finding the Fourth Proportional to 1,934.01, 2,668.55 and 1,188.09

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Solution

The fourth proportional to 1,934.01, 2,668.55 and 1,188.09 is: 1,639.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.01 : 2,668.55 = 1,188.09 : x
  2. Step 2: Convert to fraction form
    1,934.01/2,668.55 = 1,188.09/x
  3. Step 3: Cross multiply
    1,934.01x = 2,668.55 × 1,188.09
  4. Step 4: Simplify right side
    1,934.01x = 3,170,471.63
  5. Step 5: Solve for x
    x = 3,170,471.63/1,934.01
  6. Step 6: Final answer
    x = 1,639.33

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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.