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Finding the Fourth Proportional to 5,334.60, 8,001.90 and 1,636.85

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Solution

The fourth proportional to 5,334.60, 8,001.90 and 1,636.85 is: 2,455.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,334.60 : 8,001.90 = 1,636.85 : x
  2. Step 2: Convert to fraction form
    5,334.60/8,001.90 = 1,636.85/x
  3. Step 3: Cross multiply
    5,334.60x = 8,001.90 × 1,636.85
  4. Step 4: Simplify right side
    5,334.60x = 13,097,870.01
  5. Step 5: Solve for x
    x = 13,097,870.01/5,334.60
  6. Step 6: Final answer
    x = 2,455.27

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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.