Home / 3,120.16-4,682.40-2,243.20

Finding the Fourth Proportional to 3,120.16, 4,682.40 and 2,243.20

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Solution

The fourth proportional to 3,120.16, 4,682.40 and 2,243.20 is: 3,366.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.16 : 4,682.40 = 2,243.20 : x
  2. Step 2: Convert to fraction form
    3,120.16/4,682.40 = 2,243.20/x
  3. Step 3: Cross multiply
    3,120.16x = 4,682.40 × 2,243.20
  4. Step 4: Simplify right side
    3,120.16x = 10,503,559.68
  5. Step 5: Solve for x
    x = 10,503,559.68/3,120.16
  6. Step 6: Final answer
    x = 3,366.35

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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.