Home / 3,751.28-5,176.40-2,179.44

Finding the Fourth Proportional to 3,751.28, 5,176.40 and 2,179.44

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Solution

The fourth proportional to 3,751.28, 5,176.40 and 2,179.44 is: 3,007.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.28 : 5,176.40 = 2,179.44 : x
  2. Step 2: Convert to fraction form
    3,751.28/5,176.40 = 2,179.44/x
  3. Step 3: Cross multiply
    3,751.28x = 5,176.40 × 2,179.44
  4. Step 4: Simplify right side
    3,751.28x = 11,281,653.22
  5. Step 5: Solve for x
    x = 11,281,653.22/3,751.28
  6. Step 6: Final answer
    x = 3,007.41

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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.