Home / 5,408.50-7,464.48-3,171.27

Finding the Fourth Proportional to 5,408.50, 7,464.48 and 3,171.27

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Solution

The fourth proportional to 5,408.50, 7,464.48 and 3,171.27 is: 4,376.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.50 : 7,464.48 = 3,171.27 : x
  2. Step 2: Convert to fraction form
    5,408.50/7,464.48 = 3,171.27/x
  3. Step 3: Cross multiply
    5,408.50x = 7,464.48 × 3,171.27
  4. Step 4: Simplify right side
    5,408.50x = 23,671,881.49
  5. Step 5: Solve for x
    x = 23,671,881.49/5,408.50
  6. Step 6: Final answer
    x = 4,376.79

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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.