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Finding the Fourth Proportional to 5,145.51, 7,100.73 and 2,907.34

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Solution

The fourth proportional to 5,145.51, 7,100.73 and 2,907.34 is: 4,012.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.51 : 7,100.73 = 2,907.34 : x
  2. Step 2: Convert to fraction form
    5,145.51/7,100.73 = 2,907.34/x
  3. Step 3: Cross multiply
    5,145.51x = 7,100.73 × 2,907.34
  4. Step 4: Simplify right side
    5,145.51x = 20,644,236.36
  5. Step 5: Solve for x
    x = 20,644,236.36/5,145.51
  6. Step 6: Final answer
    x = 4,012.09

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.