Home / 4,936.72-6,812.52-2,840.80

Finding the Fourth Proportional to 4,936.72, 6,812.52 and 2,840.80

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Solution

The fourth proportional to 4,936.72, 6,812.52 and 2,840.80 is: 3,920.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,936.72 : 6,812.52 = 2,840.80 : x
  2. Step 2: Convert to fraction form
    4,936.72/6,812.52 = 2,840.80/x
  3. Step 3: Cross multiply
    4,936.72x = 6,812.52 × 2,840.80
  4. Step 4: Simplify right side
    4,936.72x = 19,353,006.82
  5. Step 5: Solve for x
    x = 19,353,006.82/4,936.72
  6. Step 6: Final answer
    x = 3,920.22

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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.