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Finding the Fourth Proportional to 5,489.83, 8,237.90 and 5,445.25

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Solution

The fourth proportional to 5,489.83, 8,237.90 and 5,445.25 is: 8,171.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,489.83 : 8,237.90 = 5,445.25 : x
  2. Step 2: Convert to fraction form
    5,489.83/8,237.90 = 5,445.25/x
  3. Step 3: Cross multiply
    5,489.83x = 8,237.90 × 5,445.25
  4. Step 4: Simplify right side
    5,489.83x = 44,857,441.16
  5. Step 5: Solve for x
    x = 44,857,441.16/5,489.83
  6. Step 6: Final answer
    x = 8,171.01

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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.