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Finding the Fourth Proportional to 3,102.63, 4,655.29 and 1,154.49

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Solution

The fourth proportional to 3,102.63, 4,655.29 and 1,154.49 is: 1,732.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.63 : 4,655.29 = 1,154.49 : x
  2. Step 2: Convert to fraction form
    3,102.63/4,655.29 = 1,154.49/x
  3. Step 3: Cross multiply
    3,102.63x = 4,655.29 × 1,154.49
  4. Step 4: Simplify right side
    3,102.63x = 5,374,485.75
  5. Step 5: Solve for x
    x = 5,374,485.75/3,102.63
  6. Step 6: Final answer
    x = 1,732.24

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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.