Home / 4,809.10-6,636.64-2,821.09

Finding the Fourth Proportional to 4,809.10, 6,636.64 and 2,821.09

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Solution

The fourth proportional to 4,809.10, 6,636.64 and 2,821.09 is: 3,893.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,809.10 : 6,636.64 = 2,821.09 : x
  2. Step 2: Convert to fraction form
    4,809.10/6,636.64 = 2,821.09/x
  3. Step 3: Cross multiply
    4,809.10x = 6,636.64 × 2,821.09
  4. Step 4: Simplify right side
    4,809.10x = 18,722,558.74
  5. Step 5: Solve for x
    x = 18,722,558.74/4,809.10
  6. Step 6: Final answer
    x = 3,893.15

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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.