Home / 4,820.76-6,650.37-3,143.61

Finding the Fourth Proportional to 4,820.76, 6,650.37 and 3,143.61

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Solution

The fourth proportional to 4,820.76, 6,650.37 and 3,143.61 is: 4,336.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,820.76 : 6,650.37 = 3,143.61 : x
  2. Step 2: Convert to fraction form
    4,820.76/6,650.37 = 3,143.61/x
  3. Step 3: Cross multiply
    4,820.76x = 6,650.37 × 3,143.61
  4. Step 4: Simplify right side
    4,820.76x = 20,906,169.64
  5. Step 5: Solve for x
    x = 20,906,169.64/4,820.76
  6. Step 6: Final answer
    x = 4,336.70

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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.