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Finding the Fourth Proportional to 6,459.90, 8,914.98 and 3,627.84

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Solution

The fourth proportional to 6,459.90, 8,914.98 and 3,627.84 is: 5,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,459.90 : 8,914.98 = 3,627.84 : x
  2. Step 2: Convert to fraction form
    6,459.90/8,914.98 = 3,627.84/x
  3. Step 3: Cross multiply
    6,459.90x = 8,914.98 × 3,627.84
  4. Step 4: Simplify right side
    6,459.90x = 32,342,121.04
  5. Step 5: Solve for x
    x = 32,342,121.04/6,459.90
  6. Step 6: Final answer
    x = 5,006.60

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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.