Home / 3,653.72-5,479.94-1,188.18

Finding the Fourth Proportional to 3,653.72, 5,479.94 and 1,188.18

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Solution

The fourth proportional to 3,653.72, 5,479.94 and 1,188.18 is: 1,782.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.72 : 5,479.94 = 1,188.18 : x
  2. Step 2: Convert to fraction form
    3,653.72/5,479.94 = 1,188.18/x
  3. Step 3: Cross multiply
    3,653.72x = 5,479.94 × 1,188.18
  4. Step 4: Simplify right side
    3,653.72x = 6,511,155.11
  5. Step 5: Solve for x
    x = 6,511,155.11/3,653.72
  6. Step 6: Final answer
    x = 1,782.06

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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.