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Finding the Fourth Proportional to 5,485.58, 8,209.23 and 4,486.85

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Solution

The fourth proportional to 5,485.58, 8,209.23 and 4,486.85 is: 6,714.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.58 : 8,209.23 = 4,486.85 : x
  2. Step 2: Convert to fraction form
    5,485.58/8,209.23 = 4,486.85/x
  3. Step 3: Cross multiply
    5,485.58x = 8,209.23 × 4,486.85
  4. Step 4: Simplify right side
    5,485.58x = 36,833,583.63
  5. Step 5: Solve for x
    x = 36,833,583.63/5,485.58
  6. Step 6: Final answer
    x = 6,714.62

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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.