Home / 2,213.40-3,315.44-1,516.80

Finding the Fourth Proportional to 2,213.40, 3,315.44 and 1,516.80

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Solution

The fourth proportional to 2,213.40, 3,315.44 and 1,516.80 is: 2,272.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.40 : 3,315.44 = 1,516.80 : x
  2. Step 2: Convert to fraction form
    2,213.40/3,315.44 = 1,516.80/x
  3. Step 3: Cross multiply
    2,213.40x = 3,315.44 × 1,516.80
  4. Step 4: Simplify right side
    2,213.40x = 5,028,859.39
  5. Step 5: Solve for x
    x = 5,028,859.39/2,213.40
  6. Step 6: Final answer
    x = 2,272.01

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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.