Home / 4,168.12-5,751.78-2,305

Finding the Fourth Proportional to 4,168.12, 5,751.78 and 2,305

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Solution

The fourth proportional to 4,168.12, 5,751.78 and 2,305 is: 3,180.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,168.12 : 5,751.78 = 2,305 : x
  2. Step 2: Convert to fraction form
    4,168.12/5,751.78 = 2,305/x
  3. Step 3: Cross multiply
    4,168.12x = 5,751.78 × 2,305
  4. Step 4: Simplify right side
    4,168.12x = 13,257,852.90
  5. Step 5: Solve for x
    x = 13,257,852.90/4,168.12
  6. Step 6: Final answer
    x = 3,180.78

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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.