Home / 3,651.09-5,475.50-1,185.40

Finding the Fourth Proportional to 3,651.09, 5,475.50 and 1,185.40

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Solution

The fourth proportional to 3,651.09, 5,475.50 and 1,185.40 is: 1,777.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.09 : 5,475.50 = 1,185.40 : x
  2. Step 2: Convert to fraction form
    3,651.09/5,475.50 = 1,185.40/x
  3. Step 3: Cross multiply
    3,651.09x = 5,475.50 × 1,185.40
  4. Step 4: Simplify right side
    3,651.09x = 6,490,663.06
  5. Step 5: Solve for x
    x = 6,490,663.06/3,651.09
  6. Step 6: Final answer
    x = 1,777.73

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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.