Home / 3,885.42-5,359.58-2,749.81

Finding the Fourth Proportional to 3,885.42, 5,359.58 and 2,749.81

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Solution

The fourth proportional to 3,885.42, 5,359.58 and 2,749.81 is: 3,793.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.42 : 5,359.58 = 2,749.81 : x
  2. Step 2: Convert to fraction form
    3,885.42/5,359.58 = 2,749.81/x
  3. Step 3: Cross multiply
    3,885.42x = 5,359.58 × 2,749.81
  4. Step 4: Simplify right side
    3,885.42x = 14,737,826.68
  5. Step 5: Solve for x
    x = 14,737,826.68/3,885.42
  6. Step 6: Final answer
    x = 3,793.11

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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.