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Finding the Fourth Proportional to 1,013.88, 1,511.07 and 1,012.26

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Solution

The fourth proportional to 1,013.88, 1,511.07 and 1,012.26 is: 1,508.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013.88 : 1,511.07 = 1,012.26 : x
  2. Step 2: Convert to fraction form
    1,013.88/1,511.07 = 1,012.26/x
  3. Step 3: Cross multiply
    1,013.88x = 1,511.07 × 1,012.26
  4. Step 4: Simplify right side
    1,013.88x = 1,529,595.72
  5. Step 5: Solve for x
    x = 1,529,595.72/1,013.88
  6. Step 6: Final answer
    x = 1,508.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.