Home / 3,160.08-4,357.06-2,879.15

Finding the Fourth Proportional to 3,160.08, 4,357.06 and 2,879.15

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Solution

The fourth proportional to 3,160.08, 4,357.06 and 2,879.15 is: 3,969.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.08 : 4,357.06 = 2,879.15 : x
  2. Step 2: Convert to fraction form
    3,160.08/4,357.06 = 2,879.15/x
  3. Step 3: Cross multiply
    3,160.08x = 4,357.06 × 2,879.15
  4. Step 4: Simplify right side
    3,160.08x = 12,544,600.32
  5. Step 5: Solve for x
    x = 12,544,600.32/3,160.08
  6. Step 6: Final answer
    x = 3,969.71

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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.