Home / 3,493.23-5,238.45-1,412.84

Finding the Fourth Proportional to 3,493.23, 5,238.45 and 1,412.84

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Solution

The fourth proportional to 3,493.23, 5,238.45 and 1,412.84 is: 2,118.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.23 : 5,238.45 = 1,412.84 : x
  2. Step 2: Convert to fraction form
    3,493.23/5,238.45 = 1,412.84/x
  3. Step 3: Cross multiply
    3,493.23x = 5,238.45 × 1,412.84
  4. Step 4: Simplify right side
    3,493.23x = 7,401,091.70
  5. Step 5: Solve for x
    x = 7,401,091.70/3,493.23
  6. Step 6: Final answer
    x = 2,118.70

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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.