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Finding the Fourth Proportional to 6,354.18, 8,768.61 and 3,559.86

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Solution

The fourth proportional to 6,354.18, 8,768.61 and 3,559.86 is: 4,912.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,354.18 : 8,768.61 = 3,559.86 : x
  2. Step 2: Convert to fraction form
    6,354.18/8,768.61 = 3,559.86/x
  3. Step 3: Cross multiply
    6,354.18x = 8,768.61 × 3,559.86
  4. Step 4: Simplify right side
    6,354.18x = 31,215,023.99
  5. Step 5: Solve for x
    x = 31,215,023.99/6,354.18
  6. Step 6: Final answer
    x = 4,912.52

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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.