Home / 2,830.41-3,906.63-1,886.22

Finding the Fourth Proportional to 2,830.41, 3,906.63 and 1,886.22

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Solution

The fourth proportional to 2,830.41, 3,906.63 and 1,886.22 is: 2,603.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.41 : 3,906.63 = 1,886.22 : x
  2. Step 2: Convert to fraction form
    2,830.41/3,906.63 = 1,886.22/x
  3. Step 3: Cross multiply
    2,830.41x = 3,906.63 × 1,886.22
  4. Step 4: Simplify right side
    2,830.41x = 7,368,763.64
  5. Step 5: Solve for x
    x = 7,368,763.64/2,830.41
  6. Step 6: Final answer
    x = 2,603.43

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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.