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Finding the Third Proportional to 1,511.23 and 2,311.56

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Solution

The third proportional to 1,511.23 and 2,311.56 is: 3,535.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.23 : 2,311.56 = 2,311.56 : x
  2. Step 2: Convert to fraction form
    1,511.23/2,311.56 = 2,311.56/x
  3. Step 3: Cross multiply
    1,511.23x = 2,311.56 × 2,311.56
  4. Step 4: Simplify right side
    1,511.23x = 5,343,303.13
  5. Step 5: Solve for x
    x = 5,343,303.13/1,511.23
  6. Step 6: Final answer
    x = 3,535.74

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.