Home / 3,751.08-5,176.78-2,179.08

Finding the Fourth Proportional to 3,751.08, 5,176.78 and 2,179.08

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Solution

The fourth proportional to 3,751.08, 5,176.78 and 2,179.08 is: 3,007.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.08 : 5,176.78 = 2,179.08 : x
  2. Step 2: Convert to fraction form
    3,751.08/5,176.78 = 2,179.08/x
  3. Step 3: Cross multiply
    3,751.08x = 5,176.78 × 2,179.08
  4. Step 4: Simplify right side
    3,751.08x = 11,280,617.76
  5. Step 5: Solve for x
    x = 11,280,617.76/3,751.08
  6. Step 6: Final answer
    x = 3,007.30

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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.