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Finding the Fourth Proportional to 3,695.60, 5,539.80 and 3,306.80

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Solution

The fourth proportional to 3,695.60, 5,539.80 and 3,306.80 is: 4,956.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,695.60 : 5,539.80 = 3,306.80 : x
  2. Step 2: Convert to fraction form
    3,695.60/5,539.80 = 3,306.80/x
  3. Step 3: Cross multiply
    3,695.60x = 5,539.80 × 3,306.80
  4. Step 4: Simplify right side
    3,695.60x = 18,319,010.64
  5. Step 5: Solve for x
    x = 18,319,010.64/3,695.60
  6. Step 6: Final answer
    x = 4,956.98

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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.