Home / 4,809.28-6,636-2,712.80

Finding the Fourth Proportional to 4,809.28, 6,636 and 2,712.80

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Solution

The fourth proportional to 4,809.28, 6,636 and 2,712.80 is: 3,743.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,809.28 : 6,636 = 2,712.80 : x
  2. Step 2: Convert to fraction form
    4,809.28/6,636 = 2,712.80/x
  3. Step 3: Cross multiply
    4,809.28x = 6,636 × 2,712.80
  4. Step 4: Simplify right side
    4,809.28x = 18,002,140.80
  5. Step 5: Solve for x
    x = 18,002,140.80/4,809.28
  6. Step 6: Final answer
    x = 3,743.21

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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.