Home / 5,556.80-7,669.68-3,668.72

Finding the Fourth Proportional to 5,556.80, 7,669.68 and 3,668.72

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Solution

The fourth proportional to 5,556.80, 7,669.68 and 3,668.72 is: 5,063.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,556.80 : 7,669.68 = 3,668.72 : x
  2. Step 2: Convert to fraction form
    5,556.80/7,669.68 = 3,668.72/x
  3. Step 3: Cross multiply
    5,556.80x = 7,669.68 × 3,668.72
  4. Step 4: Simplify right side
    5,556.80x = 28,137,908.41
  5. Step 5: Solve for x
    x = 28,137,908.41/5,556.80
  6. Step 6: Final answer
    x = 5,063.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.