Home / 4,487.20-6,730.80-4,297.60

Finding the Fourth Proportional to 4,487.20, 6,730.80 and 4,297.60

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Solution

The fourth proportional to 4,487.20, 6,730.80 and 4,297.60 is: 6,446.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,487.20 : 6,730.80 = 4,297.60 : x
  2. Step 2: Convert to fraction form
    4,487.20/6,730.80 = 4,297.60/x
  3. Step 3: Cross multiply
    4,487.20x = 6,730.80 × 4,297.60
  4. Step 4: Simplify right side
    4,487.20x = 28,926,286.08
  5. Step 5: Solve for x
    x = 28,926,286.08/4,487.20
  6. Step 6: Final answer
    x = 6,446.40

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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.