Home / 3,760.87-5,189.65-2,188.66

Finding the Fourth Proportional to 3,760.87, 5,189.65 and 2,188.66

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Solution

The fourth proportional to 3,760.87, 5,189.65 and 2,188.66 is: 3,020.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.87 : 5,189.65 = 2,188.66 : x
  2. Step 2: Convert to fraction form
    3,760.87/5,189.65 = 2,188.66/x
  3. Step 3: Cross multiply
    3,760.87x = 5,189.65 × 2,188.66
  4. Step 4: Simplify right side
    3,760.87x = 11,358,379.37
  5. Step 5: Solve for x
    x = 11,358,379.37/3,760.87
  6. Step 6: Final answer
    x = 3,020.15

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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.