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Finding the Fourth Proportional to 5,890.11, 8,129.53 and 3,499.62

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Solution

The fourth proportional to 5,890.11, 8,129.53 and 3,499.62 is: 4,830.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,890.11 : 8,129.53 = 3,499.62 : x
  2. Step 2: Convert to fraction form
    5,890.11/8,129.53 = 3,499.62/x
  3. Step 3: Cross multiply
    5,890.11x = 8,129.53 × 3,499.62
  4. Step 4: Simplify right side
    5,890.11x = 28,450,255.62
  5. Step 5: Solve for x
    x = 28,450,255.62/5,890.11
  6. Step 6: Final answer
    x = 4,830.18

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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.