Home / 5,890.28-8,128.44-3,201.38

Finding the Fourth Proportional to 5,890.28, 8,128.44 and 3,201.38

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Solution

The fourth proportional to 5,890.28, 8,128.44 and 3,201.38 is: 4,417.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,890.28 : 8,128.44 = 3,201.38 : x
  2. Step 2: Convert to fraction form
    5,890.28/8,128.44 = 3,201.38/x
  3. Step 3: Cross multiply
    5,890.28x = 8,128.44 × 3,201.38
  4. Step 4: Simplify right side
    5,890.28x = 26,022,225.25
  5. Step 5: Solve for x
    x = 26,022,225.25/5,890.28
  6. Step 6: Final answer
    x = 4,417.82

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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.