Home / 5,408.40-7,464.33-3,171.18

Finding the Fourth Proportional to 5,408.40, 7,464.33 and 3,171.18

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Solution

The fourth proportional to 5,408.40, 7,464.33 and 3,171.18 is: 4,376.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.40 : 7,464.33 = 3,171.18 : x
  2. Step 2: Convert to fraction form
    5,408.40/7,464.33 = 3,171.18/x
  3. Step 3: Cross multiply
    5,408.40x = 7,464.33 × 3,171.18
  4. Step 4: Simplify right side
    5,408.40x = 23,670,734.01
  5. Step 5: Solve for x
    x = 23,670,734.01/5,408.40
  6. Step 6: Final answer
    x = 4,376.66

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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.