Home / 3,964.13-5,455.93-3,398.24

Finding the Fourth Proportional to 3,964.13, 5,455.93 and 3,398.24

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Solution

The fourth proportional to 3,964.13, 5,455.93 and 3,398.24 is: 4,677.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.13 : 5,455.93 = 3,398.24 : x
  2. Step 2: Convert to fraction form
    3,964.13/5,455.93 = 3,398.24/x
  3. Step 3: Cross multiply
    3,964.13x = 5,455.93 × 3,398.24
  4. Step 4: Simplify right side
    3,964.13x = 18,540,544.25
  5. Step 5: Solve for x
    x = 18,540,544.25/3,964.13
  6. Step 6: Final answer
    x = 4,677.08

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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.