Home / 2,851.11-3,932.06-1,856.03

Finding the Fourth Proportional to 2,851.11, 3,932.06 and 1,856.03

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Solution

The fourth proportional to 2,851.11, 3,932.06 and 1,856.03 is: 2,559.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.11 : 3,932.06 = 1,856.03 : x
  2. Step 2: Convert to fraction form
    2,851.11/3,932.06 = 1,856.03/x
  3. Step 3: Cross multiply
    2,851.11x = 3,932.06 × 1,856.03
  4. Step 4: Simplify right side
    2,851.11x = 7,297,992.38
  5. Step 5: Solve for x
    x = 7,297,992.38/2,851.11
  6. Step 6: Final answer
    x = 2,559.70

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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.