Home / 7,705.56-11,561.40-2,511.48

Finding the Fourth Proportional to 7,705.56, 11,561.40 and 2,511.48

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Solution

The fourth proportional to 7,705.56, 11,561.40 and 2,511.48 is: 3,768.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,705.56 : 11,561.40 = 2,511.48 : x
  2. Step 2: Convert to fraction form
    7,705.56/11,561.40 = 2,511.48/x
  3. Step 3: Cross multiply
    7,705.56x = 11,561.40 × 2,511.48
  4. Step 4: Simplify right side
    7,705.56x = 29,036,224.87
  5. Step 5: Solve for x
    x = 29,036,224.87/7,705.56
  6. Step 6: Final answer
    x = 3,768.22

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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.