Home / 3,976.40-5,964.60-3,904.40

Finding the Fourth Proportional to 3,976.40, 5,964.60 and 3,904.40

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Solution

The fourth proportional to 3,976.40, 5,964.60 and 3,904.40 is: 5,856.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.40 : 5,964.60 = 3,904.40 : x
  2. Step 2: Convert to fraction form
    3,976.40/5,964.60 = 3,904.40/x
  3. Step 3: Cross multiply
    3,976.40x = 5,964.60 × 3,904.40
  4. Step 4: Simplify right side
    3,976.40x = 23,288,184.24
  5. Step 5: Solve for x
    x = 23,288,184.24/3,976.40
  6. Step 6: Final answer
    x = 5,856.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.