Home / 3,748.65-5,169.25-3,219.28

Finding the Fourth Proportional to 3,748.65, 5,169.25 and 3,219.28

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Solution

The fourth proportional to 3,748.65, 5,169.25 and 3,219.28 is: 4,439.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.65 : 5,169.25 = 3,219.28 : x
  2. Step 2: Convert to fraction form
    3,748.65/5,169.25 = 3,219.28/x
  3. Step 3: Cross multiply
    3,748.65x = 5,169.25 × 3,219.28
  4. Step 4: Simplify right side
    3,748.65x = 16,641,242.72
  5. Step 5: Solve for x
    x = 16,641,242.72/3,748.65
  6. Step 6: Final answer
    x = 4,439.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.