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Finding the Fourth Proportional to 1,511.54, 2,267.01 and 471.38

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Solution

The fourth proportional to 1,511.54, 2,267.01 and 471.38 is: 706.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.54 : 2,267.01 = 471.38 : x
  2. Step 2: Convert to fraction form
    1,511.54/2,267.01 = 471.38/x
  3. Step 3: Cross multiply
    1,511.54x = 2,267.01 × 471.38
  4. Step 4: Simplify right side
    1,511.54x = 1,068,610.66
  5. Step 5: Solve for x
    x = 1,068,610.66/1,511.54
  6. Step 6: Final answer
    x = 706.97

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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.