Home / 3,391.64-4,680.70-1,879.34

Finding the Fourth Proportional to 3,391.64, 4,680.70 and 1,879.34

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Solution

The fourth proportional to 3,391.64, 4,680.70 and 1,879.34 is: 2,593.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.64 : 4,680.70 = 1,879.34 : x
  2. Step 2: Convert to fraction form
    3,391.64/4,680.70 = 1,879.34/x
  3. Step 3: Cross multiply
    3,391.64x = 4,680.70 × 1,879.34
  4. Step 4: Simplify right side
    3,391.64x = 8,796,633.74
  5. Step 5: Solve for x
    x = 8,796,633.74/3,391.64
  6. Step 6: Final answer
    x = 2,593.63

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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.