Home / 3,958.34-5,458.88-3,398.62

Finding the Fourth Proportional to 3,958.34, 5,458.88 and 3,398.62

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Solution

The fourth proportional to 3,958.34, 5,458.88 and 3,398.62 is: 4,686.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.34 : 5,458.88 = 3,398.62 : x
  2. Step 2: Convert to fraction form
    3,958.34/5,458.88 = 3,398.62/x
  3. Step 3: Cross multiply
    3,958.34x = 5,458.88 × 3,398.62
  4. Step 4: Simplify right side
    3,958.34x = 18,552,658.75
  5. Step 5: Solve for x
    x = 18,552,658.75/3,958.34
  6. Step 6: Final answer
    x = 4,686.98

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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.