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Finding the Fourth Proportional to 2,968.66, 4,453.25 and 777.38

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Solution

The fourth proportional to 2,968.66, 4,453.25 and 777.38 is: 1,166.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,968.66 : 4,453.25 = 777.38 : x
  2. Step 2: Convert to fraction form
    2,968.66/4,453.25 = 777.38/x
  3. Step 3: Cross multiply
    2,968.66x = 4,453.25 × 777.38
  4. Step 4: Simplify right side
    2,968.66x = 3,461,867.49
  5. Step 5: Solve for x
    x = 3,461,867.49/2,968.66
  6. Step 6: Final answer
    x = 1,166.14

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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.