Home / 3,642.80-5,465.44-1,177.72

Finding the Fourth Proportional to 3,642.80, 5,465.44 and 1,177.72

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Solution

The fourth proportional to 3,642.80, 5,465.44 and 1,177.72 is: 1,766.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.80 : 5,465.44 = 1,177.72 : x
  2. Step 2: Convert to fraction form
    3,642.80/5,465.44 = 1,177.72/x
  3. Step 3: Cross multiply
    3,642.80x = 5,465.44 × 1,177.72
  4. Step 4: Simplify right side
    3,642.80x = 6,436,758.00
  5. Step 5: Solve for x
    x = 6,436,758.00/3,642.80
  6. Step 6: Final answer
    x = 1,766.98

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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.