Home / 1,500.67-2,251.12-405.03

Finding the Fourth Proportional to 1,500.67, 2,251.12 and 405.03

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Solution

The fourth proportional to 1,500.67, 2,251.12 and 405.03 is: 607.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500.67 : 2,251.12 = 405.03 : x
  2. Step 2: Convert to fraction form
    1,500.67/2,251.12 = 405.03/x
  3. Step 3: Cross multiply
    1,500.67x = 2,251.12 × 405.03
  4. Step 4: Simplify right side
    1,500.67x = 911,759.88
  5. Step 5: Solve for x
    x = 911,759.88/1,500.67
  6. Step 6: Final answer
    x = 607.57

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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.