Home / 2,785.14-4,177.80-936.32

Finding the Fourth Proportional to 2,785.14, 4,177.80 and 936.32

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Solution

The fourth proportional to 2,785.14, 4,177.80 and 936.32 is: 1,404.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.14 : 4,177.80 = 936.32 : x
  2. Step 2: Convert to fraction form
    2,785.14/4,177.80 = 936.32/x
  3. Step 3: Cross multiply
    2,785.14x = 4,177.80 × 936.32
  4. Step 4: Simplify right side
    2,785.14x = 3,911,736.81
  5. Step 5: Solve for x
    x = 3,911,736.81/2,785.14
  6. Step 6: Final answer
    x = 1,404.50

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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.