Home / 3,751.90-5,627.33-1,286.68

Finding the Fourth Proportional to 3,751.90, 5,627.33 and 1,286.68

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Solution

The fourth proportional to 3,751.90, 5,627.33 and 1,286.68 is: 1,929.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.90 : 5,627.33 = 1,286.68 : x
  2. Step 2: Convert to fraction form
    3,751.90/5,627.33 = 1,286.68/x
  3. Step 3: Cross multiply
    3,751.90x = 5,627.33 × 1,286.68
  4. Step 4: Simplify right side
    3,751.90x = 7,240,572.96
  5. Step 5: Solve for x
    x = 7,240,572.96/3,751.90
  6. Step 6: Final answer
    x = 1,929.84

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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.