Home / 1,511.22-2,266.83-415.59

Finding the Fourth Proportional to 1,511.22, 2,266.83 and 415.59

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Solution

The fourth proportional to 1,511.22, 2,266.83 and 415.59 is: 623.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.22 : 2,266.83 = 415.59 : x
  2. Step 2: Convert to fraction form
    1,511.22/2,266.83 = 415.59/x
  3. Step 3: Cross multiply
    1,511.22x = 2,266.83 × 415.59
  4. Step 4: Simplify right side
    1,511.22x = 942,071.88
  5. Step 5: Solve for x
    x = 942,071.88/1,511.22
  6. Step 6: Final answer
    x = 623.39

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1.5x scale

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.