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Finding the Fourth Proportional to 5,541.56, 8,319.60 and 3,898.88

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Solution

The fourth proportional to 5,541.56, 8,319.60 and 3,898.88 is: 5,853.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,541.56 : 8,319.60 = 3,898.88 : x
  2. Step 2: Convert to fraction form
    5,541.56/8,319.60 = 3,898.88/x
  3. Step 3: Cross multiply
    5,541.56x = 8,319.60 × 3,898.88
  4. Step 4: Simplify right side
    5,541.56x = 32,437,122.05
  5. Step 5: Solve for x
    x = 32,437,122.05/5,541.56
  6. Step 6: Final answer
    x = 5,853.43

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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.