Home / 5,921.05-8,171.45-3,403.98

Finding the Fourth Proportional to 5,921.05, 8,171.45 and 3,403.98

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Solution

The fourth proportional to 5,921.05, 8,171.45 and 3,403.98 is: 4,697.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.05 : 8,171.45 = 3,403.98 : x
  2. Step 2: Convert to fraction form
    5,921.05/8,171.45 = 3,403.98/x
  3. Step 3: Cross multiply
    5,921.05x = 8,171.45 × 3,403.98
  4. Step 4: Simplify right side
    5,921.05x = 27,815,452.37
  5. Step 5: Solve for x
    x = 27,815,452.37/5,921.05
  6. Step 6: Final answer
    x = 4,697.72

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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.