Home / 5,890.55-8,128.70-3,237.80

Finding the Fourth Proportional to 5,890.55, 8,128.70 and 3,237.80

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Solution

The fourth proportional to 5,890.55, 8,128.70 and 3,237.80 is: 4,468.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,890.55 : 8,128.70 = 3,237.80 : x
  2. Step 2: Convert to fraction form
    5,890.55/8,128.70 = 3,237.80/x
  3. Step 3: Cross multiply
    5,890.55x = 8,128.70 × 3,237.80
  4. Step 4: Simplify right side
    5,890.55x = 26,319,104.86
  5. Step 5: Solve for x
    x = 26,319,104.86/5,890.55
  6. Step 6: Final answer
    x = 4,468.02

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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.