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Finding the Third Proportional to 4,320 and 5,724

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Solution

The third proportional to 4,320 and 5,724 is: 7,584.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320 : 5,724 = 5,724 : x
  2. Step 2: Convert to fraction form
    4,320/5,724 = 5,724/x
  3. Step 3: Cross multiply
    4,320x = 5,724 × 5,724
  4. Step 4: Simplify right side
    4,320x = 32,764,176
  5. Step 5: Solve for x
    x = 32,764,176/4,320
  6. Step 6: Final answer
    x = 7,584.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.