Home / 1,511.08-2,266.25-415.39

Finding the Fourth Proportional to 1,511.08, 2,266.25 and 415.39

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Solution

The fourth proportional to 1,511.08, 2,266.25 and 415.39 is: 622.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.08 : 2,266.25 = 415.39 : x
  2. Step 2: Convert to fraction form
    1,511.08/2,266.25 = 415.39/x
  3. Step 3: Cross multiply
    1,511.08x = 2,266.25 × 415.39
  4. Step 4: Simplify right side
    1,511.08x = 941,375.51
  5. Step 5: Solve for x
    x = 941,375.51/1,511.08
  6. Step 6: Final answer
    x = 622.98

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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.