Home / 1,511.23-2,266.58-415.33

Finding the Fourth Proportional to 1,511.23, 2,266.58 and 415.33

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Solution

The fourth proportional to 1,511.23, 2,266.58 and 415.33 is: 622.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.23 : 2,266.58 = 415.33 : x
  2. Step 2: Convert to fraction form
    1,511.23/2,266.58 = 415.33/x
  3. Step 3: Cross multiply
    1,511.23x = 2,266.58 × 415.33
  4. Step 4: Simplify right side
    1,511.23x = 941,378.67
  5. Step 5: Solve for x
    x = 941,378.67/1,511.23
  6. Step 6: Final answer
    x = 622.92

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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.