Home / 4,680.86-6,456.71-3,189.44

Finding the Fourth Proportional to 4,680.86, 6,456.71 and 3,189.44

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Solution

The fourth proportional to 4,680.86, 6,456.71 and 3,189.44 is: 4,399.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.86 : 6,456.71 = 3,189.44 : x
  2. Step 2: Convert to fraction form
    4,680.86/6,456.71 = 3,189.44/x
  3. Step 3: Cross multiply
    4,680.86x = 6,456.71 × 3,189.44
  4. Step 4: Simplify right side
    4,680.86x = 20,593,313.26
  5. Step 5: Solve for x
    x = 20,593,313.26/4,680.86
  6. Step 6: Final answer
    x = 4,399.48

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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.