Home / 3,872.40-5,344.30-2,193.67

Finding the Fourth Proportional to 3,872.40, 5,344.30 and 2,193.67

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Solution

The fourth proportional to 3,872.40, 5,344.30 and 2,193.67 is: 3,027.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.40 : 5,344.30 = 2,193.67 : x
  2. Step 2: Convert to fraction form
    3,872.40/5,344.30 = 2,193.67/x
  3. Step 3: Cross multiply
    3,872.40x = 5,344.30 × 2,193.67
  4. Step 4: Simplify right side
    3,872.40x = 11,723,652.36
  5. Step 5: Solve for x
    x = 11,723,652.36/3,872.40
  6. Step 6: Final answer
    x = 3,027.49

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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.