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Finding the Fourth Proportional to 2,516.44, 3,775.20 and 977.44

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Solution

The fourth proportional to 2,516.44, 3,775.20 and 977.44 is: 1,466.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,516.44 : 3,775.20 = 977.44 : x
  2. Step 2: Convert to fraction form
    2,516.44/3,775.20 = 977.44/x
  3. Step 3: Cross multiply
    2,516.44x = 3,775.20 × 977.44
  4. Step 4: Simplify right side
    2,516.44x = 3,690,018.38
  5. Step 5: Solve for x
    x = 3,690,018.38/2,516.44
  6. Step 6: Final answer
    x = 1,466.37

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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.