Home / 1,511.26-2,266.45-415.66

Finding the Fourth Proportional to 1,511.26, 2,266.45 and 415.66

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Solution

The fourth proportional to 1,511.26, 2,266.45 and 415.66 is: 623.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.26 : 2,266.45 = 415.66 : x
  2. Step 2: Convert to fraction form
    1,511.26/2,266.45 = 415.66/x
  3. Step 3: Cross multiply
    1,511.26x = 2,266.45 × 415.66
  4. Step 4: Simplify right side
    1,511.26x = 942,072.61
  5. Step 5: Solve for x
    x = 942,072.61/1,511.26
  6. Step 6: Final answer
    x = 623.37

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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.