Home / 3,848.55-5,313.42-2,789.84

Finding the Fourth Proportional to 3,848.55, 5,313.42 and 2,789.84

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Solution

The fourth proportional to 3,848.55, 5,313.42 and 2,789.84 is: 3,851.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.55 : 5,313.42 = 2,789.84 : x
  2. Step 2: Convert to fraction form
    3,848.55/5,313.42 = 2,789.84/x
  3. Step 3: Cross multiply
    3,848.55x = 5,313.42 × 2,789.84
  4. Step 4: Simplify right side
    3,848.55x = 14,823,565.09
  5. Step 5: Solve for x
    x = 14,823,565.09/3,848.55
  6. Step 6: Final answer
    x = 3,851.73

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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.