Home / 3,653.75-5,480.69-1,188.56

Finding the Fourth Proportional to 3,653.75, 5,480.69 and 1,188.56

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Solution

The fourth proportional to 3,653.75, 5,480.69 and 1,188.56 is: 1,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.75 : 5,480.69 = 1,188.56 : x
  2. Step 2: Convert to fraction form
    3,653.75/5,480.69 = 1,188.56/x
  3. Step 3: Cross multiply
    3,653.75x = 5,480.69 × 1,188.56
  4. Step 4: Simplify right side
    3,653.75x = 6,514,095.56
  5. Step 5: Solve for x
    x = 6,514,095.56/3,653.75
  6. Step 6: Final answer
    x = 1,782.85

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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.