Home / 2,851.44-3,933.63-1,856.35

Finding the Fourth Proportional to 2,851.44, 3,933.63 and 1,856.35

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Solution

The fourth proportional to 2,851.44, 3,933.63 and 1,856.35 is: 2,560.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.44 : 3,933.63 = 1,856.35 : x
  2. Step 2: Convert to fraction form
    2,851.44/3,933.63 = 1,856.35/x
  3. Step 3: Cross multiply
    2,851.44x = 3,933.63 × 1,856.35
  4. Step 4: Simplify right side
    2,851.44x = 7,302,194.05
  5. Step 5: Solve for x
    x = 7,302,194.05/2,851.44
  6. Step 6: Final answer
    x = 2,560.88

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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.