Home / 6,390.26-9,587.77-2,879.21

Finding the Fourth Proportional to 6,390.26, 9,587.77 and 2,879.21

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Solution

The fourth proportional to 6,390.26, 9,587.77 and 2,879.21 is: 4,319.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,390.26 : 9,587.77 = 2,879.21 : x
  2. Step 2: Convert to fraction form
    6,390.26/9,587.77 = 2,879.21/x
  3. Step 3: Cross multiply
    6,390.26x = 9,587.77 × 2,879.21
  4. Step 4: Simplify right side
    6,390.26x = 27,605,188.87
  5. Step 5: Solve for x
    x = 27,605,188.87/6,390.26
  6. Step 6: Final answer
    x = 4,319.89

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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.