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Finding the Fourth Proportional to 3,157.07, 4,754.14 and 2,750.96

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Solution

The fourth proportional to 3,157.07, 4,754.14 and 2,750.96 is: 4,142.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.07 : 4,754.14 = 2,750.96 : x
  2. Step 2: Convert to fraction form
    3,157.07/4,754.14 = 2,750.96/x
  3. Step 3: Cross multiply
    3,157.07x = 4,754.14 × 2,750.96
  4. Step 4: Simplify right side
    3,157.07x = 13,078,411.45
  5. Step 5: Solve for x
    x = 13,078,411.45/3,157.07
  6. Step 6: Final answer
    x = 4,142.58

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.