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Finding the Fourth Proportional to 3,877.96, 5,349.92 and 3,035.28

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Solution

The fourth proportional to 3,877.96, 5,349.92 and 3,035.28 is: 4,187.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.96 : 5,349.92 = 3,035.28 : x
  2. Step 2: Convert to fraction form
    3,877.96/5,349.92 = 3,035.28/x
  3. Step 3: Cross multiply
    3,877.96x = 5,349.92 × 3,035.28
  4. Step 4: Simplify right side
    3,877.96x = 16,238,463.25
  5. Step 5: Solve for x
    x = 16,238,463.25/3,877.96
  6. Step 6: Final answer
    x = 4,187.38

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1.5x scale

Why These Related Problems?

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