Home / 2,779.25-3,831.41-1,893.92

Finding the Fourth Proportional to 2,779.25, 3,831.41 and 1,893.92

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Solution

The fourth proportional to 2,779.25, 3,831.41 and 1,893.92 is: 2,610.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.25 : 3,831.41 = 1,893.92 : x
  2. Step 2: Convert to fraction form
    2,779.25/3,831.41 = 1,893.92/x
  3. Step 3: Cross multiply
    2,779.25x = 3,831.41 × 1,893.92
  4. Step 4: Simplify right side
    2,779.25x = 7,256,384.03
  5. Step 5: Solve for x
    x = 7,256,384.03/2,779.25
  6. Step 6: Final answer
    x = 2,610.91

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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.