Home / 3,653.47-5,479.69-1,188.33

Finding the Fourth Proportional to 3,653.47, 5,479.69 and 1,188.33

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Solution

The fourth proportional to 3,653.47, 5,479.69 and 1,188.33 is: 1,782.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.47 : 5,479.69 = 1,188.33 : x
  2. Step 2: Convert to fraction form
    3,653.47/5,479.69 = 1,188.33/x
  3. Step 3: Cross multiply
    3,653.47x = 5,479.69 × 1,188.33
  4. Step 4: Simplify right side
    3,653.47x = 6,511,680.02
  5. Step 5: Solve for x
    x = 6,511,680.02/3,653.47
  6. Step 6: Final answer
    x = 1,782.33

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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.