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Finding the Fourth Proportional to 6,435.55, 9,656.09 and 2,489.58

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Solution

The fourth proportional to 6,435.55, 9,656.09 and 2,489.58 is: 3,735.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,435.55 : 9,656.09 = 2,489.58 : x
  2. Step 2: Convert to fraction form
    6,435.55/9,656.09 = 2,489.58/x
  3. Step 3: Cross multiply
    6,435.55x = 9,656.09 × 2,489.58
  4. Step 4: Simplify right side
    6,435.55x = 24,039,592.28
  5. Step 5: Solve for x
    x = 24,039,592.28/6,435.55
  6. Step 6: Final answer
    x = 3,735.44

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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.