Home / 3,968.20-5,474.40-2,395.40

Finding the Fourth Proportional to 3,968.20, 5,474.40 and 2,395.40

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Solution

The fourth proportional to 3,968.20, 5,474.40 and 2,395.40 is: 3,304.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.20 : 5,474.40 = 2,395.40 : x
  2. Step 2: Convert to fraction form
    3,968.20/5,474.40 = 2,395.40/x
  3. Step 3: Cross multiply
    3,968.20x = 5,474.40 × 2,395.40
  4. Step 4: Simplify right side
    3,968.20x = 13,113,377.76
  5. Step 5: Solve for x
    x = 13,113,377.76/3,968.20
  6. Step 6: Final answer
    x = 3,304.62

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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.