Home / 4,217.38-6,318.78-3,280.64

Finding the Fourth Proportional to 4,217.38, 6,318.78 and 3,280.64

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Solution

The fourth proportional to 4,217.38, 6,318.78 and 3,280.64 is: 4,915.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,217.38 : 6,318.78 = 3,280.64 : x
  2. Step 2: Convert to fraction form
    4,217.38/6,318.78 = 3,280.64/x
  3. Step 3: Cross multiply
    4,217.38x = 6,318.78 × 3,280.64
  4. Step 4: Simplify right side
    4,217.38x = 20,729,642.42
  5. Step 5: Solve for x
    x = 20,729,642.42/4,217.38
  6. Step 6: Final answer
    x = 4,915.29

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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.