Home / 3,160.16-4,362.88-2,809.88

Finding the Fourth Proportional to 3,160.16, 4,362.88 and 2,809.88

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Solution

The fourth proportional to 3,160.16, 4,362.88 and 2,809.88 is: 3,879.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.16 : 4,362.88 = 2,809.88 : x
  2. Step 2: Convert to fraction form
    3,160.16/4,362.88 = 2,809.88/x
  3. Step 3: Cross multiply
    3,160.16x = 4,362.88 × 2,809.88
  4. Step 4: Simplify right side
    3,160.16x = 12,259,169.25
  5. Step 5: Solve for x
    x = 12,259,169.25/3,160.16
  6. Step 6: Final answer
    x = 3,879.29

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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.