Home / 3,602.05-5,401.21-1,380.22

Finding the Fourth Proportional to 3,602.05, 5,401.21 and 1,380.22

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Solution

The fourth proportional to 3,602.05, 5,401.21 and 1,380.22 is: 2,069.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,602.05 : 5,401.21 = 1,380.22 : x
  2. Step 2: Convert to fraction form
    3,602.05/5,401.21 = 1,380.22/x
  3. Step 3: Cross multiply
    3,602.05x = 5,401.21 × 1,380.22
  4. Step 4: Simplify right side
    3,602.05x = 7,454,858.07
  5. Step 5: Solve for x
    x = 7,454,858.07/3,602.05
  6. Step 6: Final answer
    x = 2,069.62

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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.