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Finding the Fourth Proportional to 2,495.55, 3,743.32 and 764.17

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Solution

The fourth proportional to 2,495.55, 3,743.32 and 764.17 is: 1,146.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,495.55 : 3,743.32 = 764.17 : x
  2. Step 2: Convert to fraction form
    2,495.55/3,743.32 = 764.17/x
  3. Step 3: Cross multiply
    2,495.55x = 3,743.32 × 764.17
  4. Step 4: Simplify right side
    2,495.55x = 2,860,532.84
  5. Step 5: Solve for x
    x = 2,860,532.84/2,495.55
  6. Step 6: Final answer
    x = 1,146.25

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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.