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Finding the Fourth Proportional to 5,679.08, 8,520.03 and 5,584.90

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Solution

The fourth proportional to 5,679.08, 8,520.03 and 5,584.90 is: 8,378.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.08 : 8,520.03 = 5,584.90 : x
  2. Step 2: Convert to fraction form
    5,679.08/8,520.03 = 5,584.90/x
  3. Step 3: Cross multiply
    5,679.08x = 8,520.03 × 5,584.90
  4. Step 4: Simplify right side
    5,679.08x = 47,583,526.20
  5. Step 5: Solve for x
    x = 47,583,526.20/5,679.08
  6. Step 6: Final answer
    x = 8,378.75

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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.