Home / 4,812.38-6,640.63-2,822.55

Finding the Fourth Proportional to 4,812.38, 6,640.63 and 2,822.55

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Solution

The fourth proportional to 4,812.38, 6,640.63 and 2,822.55 is: 3,894.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.38 : 6,640.63 = 2,822.55 : x
  2. Step 2: Convert to fraction form
    4,812.38/6,640.63 = 2,822.55/x
  3. Step 3: Cross multiply
    4,812.38x = 6,640.63 × 2,822.55
  4. Step 4: Simplify right side
    4,812.38x = 18,743,503.15
  5. Step 5: Solve for x
    x = 18,743,503.15/4,812.38
  6. Step 6: Final answer
    x = 3,894.86

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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.