Home / 1,449.11-2,173.70-353.50

Finding the Fourth Proportional to 1,449.11, 2,173.70 and 353.50

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Solution

The fourth proportional to 1,449.11, 2,173.70 and 353.50 is: 530.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449.11 : 2,173.70 = 353.50 : x
  2. Step 2: Convert to fraction form
    1,449.11/2,173.70 = 353.50/x
  3. Step 3: Cross multiply
    1,449.11x = 2,173.70 × 353.50
  4. Step 4: Simplify right side
    1,449.11x = 768,398.40
  5. Step 5: Solve for x
    x = 768,398.40/1,449.11
  6. Step 6: Final answer
    x = 530.25

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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.