Home / 5,408.96-8,113.51-2,123.60

Finding the Fourth Proportional to 5,408.96, 8,113.51 and 2,123.60

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Solution

The fourth proportional to 5,408.96, 8,113.51 and 2,123.60 is: 3,185.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.96 : 8,113.51 = 2,123.60 : x
  2. Step 2: Convert to fraction form
    5,408.96/8,113.51 = 2,123.60/x
  3. Step 3: Cross multiply
    5,408.96x = 8,113.51 × 2,123.60
  4. Step 4: Simplify right side
    5,408.96x = 17,229,849.84
  5. Step 5: Solve for x
    x = 17,229,849.84/5,408.96
  6. Step 6: Final answer
    x = 3,185.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.