Home / 3,651.98-5,479.25-1,186.79

Finding the Fourth Proportional to 3,651.98, 5,479.25 and 1,186.79

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Solution

The fourth proportional to 3,651.98, 5,479.25 and 1,186.79 is: 1,780.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.98 : 5,479.25 = 1,186.79 : x
  2. Step 2: Convert to fraction form
    3,651.98/5,479.25 = 1,186.79/x
  3. Step 3: Cross multiply
    3,651.98x = 5,479.25 × 1,186.79
  4. Step 4: Simplify right side
    3,651.98x = 6,502,685.78
  5. Step 5: Solve for x
    x = 6,502,685.78/3,651.98
  6. Step 6: Final answer
    x = 1,780.59

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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.