Home / 5,431.05-7,495.34-3,191.81

Finding the Fourth Proportional to 5,431.05, 7,495.34 and 3,191.81

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Solution

The fourth proportional to 5,431.05, 7,495.34 and 3,191.81 is: 4,404.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.05 : 7,495.34 = 3,191.81 : x
  2. Step 2: Convert to fraction form
    5,431.05/7,495.34 = 3,191.81/x
  3. Step 3: Cross multiply
    5,431.05x = 7,495.34 × 3,191.81
  4. Step 4: Simplify right side
    5,431.05x = 23,923,647.73
  5. Step 5: Solve for x
    x = 23,923,647.73/5,431.05
  6. Step 6: Final answer
    x = 4,404.98

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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.