Home / 4,910.53-6,778.86-3,143.16

Finding the Fourth Proportional to 4,910.53, 6,778.86 and 3,143.16

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Solution

The fourth proportional to 4,910.53, 6,778.86 and 3,143.16 is: 4,339.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,910.53 : 6,778.86 = 3,143.16 : x
  2. Step 2: Convert to fraction form
    4,910.53/6,778.86 = 3,143.16/x
  3. Step 3: Cross multiply
    4,910.53x = 6,778.86 × 3,143.16
  4. Step 4: Simplify right side
    4,910.53x = 21,307,048.88
  5. Step 5: Solve for x
    x = 21,307,048.88/4,910.53
  6. Step 6: Final answer
    x = 4,339.05

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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.