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Finding the Fourth Proportional to 6,439.01, 9,658.52 and 3,515.72

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Solution

The fourth proportional to 6,439.01, 9,658.52 and 3,515.72 is: 5,273.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.01 : 9,658.52 = 3,515.72 : x
  2. Step 2: Convert to fraction form
    6,439.01/9,658.52 = 3,515.72/x
  3. Step 3: Cross multiply
    6,439.01x = 9,658.52 × 3,515.72
  4. Step 4: Simplify right side
    6,439.01x = 33,956,653.02
  5. Step 5: Solve for x
    x = 33,956,653.02/6,439.01
  6. Step 6: Final answer
    x = 5,273.58

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Similar ratio
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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.