Home / 5,455.52-8,178.96-2,168

Finding the Fourth Proportional to 5,455.52, 8,178.96 and 2,168

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Solution

The fourth proportional to 5,455.52, 8,178.96 and 2,168 is: 3,250.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.52 : 8,178.96 = 2,168 : x
  2. Step 2: Convert to fraction form
    5,455.52/8,178.96 = 2,168/x
  3. Step 3: Cross multiply
    5,455.52x = 8,178.96 × 2,168
  4. Step 4: Simplify right side
    5,455.52x = 17,731,985.28
  5. Step 5: Solve for x
    x = 17,731,985.28/5,455.52
  6. Step 6: Final answer
    x = 3,250.28

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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.