Home / 2,213.42-3,320.06-1,239.26

Finding the Fourth Proportional to 2,213.42, 3,320.06 and 1,239.26

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Solution

The fourth proportional to 2,213.42, 3,320.06 and 1,239.26 is: 1,858.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.42 : 3,320.06 = 1,239.26 : x
  2. Step 2: Convert to fraction form
    2,213.42/3,320.06 = 1,239.26/x
  3. Step 3: Cross multiply
    2,213.42x = 3,320.06 × 1,239.26
  4. Step 4: Simplify right side
    2,213.42x = 4,114,394.76
  5. Step 5: Solve for x
    x = 4,114,394.76/2,213.42
  6. Step 6: Final answer
    x = 1,858.84

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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.