Home / 1,933.20-2,668.14-1,436.40

Finding the Fourth Proportional to 1,933.20, 2,668.14 and 1,436.40

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Solution

The fourth proportional to 1,933.20, 2,668.14 and 1,436.40 is: 1,982.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.20 : 2,668.14 = 1,436.40 : x
  2. Step 2: Convert to fraction form
    1,933.20/2,668.14 = 1,436.40/x
  3. Step 3: Cross multiply
    1,933.20x = 2,668.14 × 1,436.40
  4. Step 4: Simplify right side
    1,933.20x = 3,832,516.30
  5. Step 5: Solve for x
    x = 3,832,516.30/1,933.20
  6. Step 6: Final answer
    x = 1,982.47

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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.