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Finding the Fourth Proportional to 5,373, 7,415.55 and 3,278.34

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Solution

The fourth proportional to 5,373, 7,415.55 and 3,278.34 is: 4,524.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,373 : 7,415.55 = 3,278.34 : x
  2. Step 2: Convert to fraction form
    5,373/7,415.55 = 3,278.34/x
  3. Step 3: Cross multiply
    5,373x = 7,415.55 × 3,278.34
  4. Step 4: Simplify right side
    5,373x = 24,310,694.19
  5. Step 5: Solve for x
    x = 24,310,694.19/5,373
  6. Step 6: Final answer
    x = 4,524.60

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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.