Home / 3,860.10-5,790.27-1,668.89

Finding the Fourth Proportional to 3,860.10, 5,790.27 and 1,668.89

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Solution

The fourth proportional to 3,860.10, 5,790.27 and 1,668.89 is: 2,503.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.10 : 5,790.27 = 1,668.89 : x
  2. Step 2: Convert to fraction form
    3,860.10/5,790.27 = 1,668.89/x
  3. Step 3: Cross multiply
    3,860.10x = 5,790.27 × 1,668.89
  4. Step 4: Simplify right side
    3,860.10x = 9,663,286.40
  5. Step 5: Solve for x
    x = 9,663,286.40/3,860.10
  6. Step 6: Final answer
    x = 2,503.38

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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.