Home / 3,890.67-5,833.76-2,659.57

Finding the Fourth Proportional to 3,890.67, 5,833.76 and 2,659.57

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Solution

The fourth proportional to 3,890.67, 5,833.76 and 2,659.57 is: 3,987.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.67 : 5,833.76 = 2,659.57 : x
  2. Step 2: Convert to fraction form
    3,890.67/5,833.76 = 2,659.57/x
  3. Step 3: Cross multiply
    3,890.67x = 5,833.76 × 2,659.57
  4. Step 4: Simplify right side
    3,890.67x = 15,515,265.20
  5. Step 5: Solve for x
    x = 15,515,265.20/3,890.67
  6. Step 6: Final answer
    x = 3,987.82

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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.