Home / 5,455.69-8,185.96-1,992.13

Finding the Fourth Proportional to 5,455.69, 8,185.96 and 1,992.13

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Solution

The fourth proportional to 5,455.69, 8,185.96 and 1,992.13 is: 2,989.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.69 : 8,185.96 = 1,992.13 : x
  2. Step 2: Convert to fraction form
    5,455.69/8,185.96 = 1,992.13/x
  3. Step 3: Cross multiply
    5,455.69x = 8,185.96 × 1,992.13
  4. Step 4: Simplify right side
    5,455.69x = 16,307,496.49
  5. Step 5: Solve for x
    x = 16,307,496.49/5,455.69
  6. Step 6: Final answer
    x = 2,989.08

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1.5x scale

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.