Home / 3,905.96-5,390.30-2,334.05

Finding the Fourth Proportional to 3,905.96, 5,390.30 and 2,334.05

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Solution

The fourth proportional to 3,905.96, 5,390.30 and 2,334.05 is: 3,221.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.96 : 5,390.30 = 2,334.05 : x
  2. Step 2: Convert to fraction form
    3,905.96/5,390.30 = 2,334.05/x
  3. Step 3: Cross multiply
    3,905.96x = 5,390.30 × 2,334.05
  4. Step 4: Simplify right side
    3,905.96x = 12,581,191.09
  5. Step 5: Solve for x
    x = 12,581,191.09/3,905.96
  6. Step 6: Final answer
    x = 3,221.03

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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.