Home / 7,639.70-11,459.55-3,257.60

Finding the Fourth Proportional to 7,639.70, 11,459.55 and 3,257.60

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Solution

The fourth proportional to 7,639.70, 11,459.55 and 3,257.60 is: 4,886.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.70 : 11,459.55 = 3,257.60 : x
  2. Step 2: Convert to fraction form
    7,639.70/11,459.55 = 3,257.60/x
  3. Step 3: Cross multiply
    7,639.70x = 11,459.55 × 3,257.60
  4. Step 4: Simplify right side
    7,639.70x = 37,330,630.08
  5. Step 5: Solve for x
    x = 37,330,630.08/7,639.70
  6. Step 6: Final answer
    x = 4,886.40

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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.