Home / 1,449.21-2,173.83-353.58

Finding the Fourth Proportional to 1,449.21, 2,173.83 and 353.58

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Solution

The fourth proportional to 1,449.21, 2,173.83 and 353.58 is: 530.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449.21 : 2,173.83 = 353.58 : x
  2. Step 2: Convert to fraction form
    1,449.21/2,173.83 = 353.58/x
  3. Step 3: Cross multiply
    1,449.21x = 2,173.83 × 353.58
  4. Step 4: Simplify right side
    1,449.21x = 768,622.81
  5. Step 5: Solve for x
    x = 768,622.81/1,449.21
  6. Step 6: Final answer
    x = 530.37

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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.