Home / 5,400.67-7,455.42-3,161.83

Finding the Fourth Proportional to 5,400.67, 7,455.42 and 3,161.83

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Solution

The fourth proportional to 5,400.67, 7,455.42 and 3,161.83 is: 4,364.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,400.67 : 7,455.42 = 3,161.83 : x
  2. Step 2: Convert to fraction form
    5,400.67/7,455.42 = 3,161.83/x
  3. Step 3: Cross multiply
    5,400.67x = 7,455.42 × 3,161.83
  4. Step 4: Simplify right side
    5,400.67x = 23,572,770.62
  5. Step 5: Solve for x
    x = 23,572,770.62/5,400.67
  6. Step 6: Final answer
    x = 4,364.79

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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.