Home / 3,685.06-5,529.51-2,145.22

Finding the Fourth Proportional to 3,685.06, 5,529.51 and 2,145.22

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Solution

The fourth proportional to 3,685.06, 5,529.51 and 2,145.22 is: 3,218.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.06 : 5,529.51 = 2,145.22 : x
  2. Step 2: Convert to fraction form
    3,685.06/5,529.51 = 2,145.22/x
  3. Step 3: Cross multiply
    3,685.06x = 5,529.51 × 2,145.22
  4. Step 4: Simplify right side
    3,685.06x = 11,862,015.44
  5. Step 5: Solve for x
    x = 11,862,015.44/3,685.06
  6. Step 6: Final answer
    x = 3,218.95

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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.