Home / 1,511.46-2,267.21-415.89

Finding the Fourth Proportional to 1,511.46, 2,267.21 and 415.89

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Solution

The fourth proportional to 1,511.46, 2,267.21 and 415.89 is: 623.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.46 : 2,267.21 = 415.89 : x
  2. Step 2: Convert to fraction form
    1,511.46/2,267.21 = 415.89/x
  3. Step 3: Cross multiply
    1,511.46x = 2,267.21 × 415.89
  4. Step 4: Simplify right side
    1,511.46x = 942,902.29
  5. Step 5: Solve for x
    x = 942,902.29/1,511.46
  6. Step 6: Final answer
    x = 623.83

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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.