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Finding the Fourth Proportional to 3,858.96, 5,328 and 2,463.60

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Solution

The fourth proportional to 3,858.96, 5,328 and 2,463.60 is: 3,401.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.96 : 5,328 = 2,463.60 : x
  2. Step 2: Convert to fraction form
    3,858.96/5,328 = 2,463.60/x
  3. Step 3: Cross multiply
    3,858.96x = 5,328 × 2,463.60
  4. Step 4: Simplify right side
    3,858.96x = 13,126,060.80
  5. Step 5: Solve for x
    x = 13,126,060.80/3,858.96
  6. Step 6: Final answer
    x = 3,401.45

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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.