Home / 4,815.87-6,645.94-2,720.00

Finding the Fourth Proportional to 4,815.87, 6,645.94 and 2,720.00

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Solution

The fourth proportional to 4,815.87, 6,645.94 and 2,720.00 is: 3,753.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.87 : 6,645.94 = 2,720.00 : x
  2. Step 2: Convert to fraction form
    4,815.87/6,645.94 = 2,720.00/x
  3. Step 3: Cross multiply
    4,815.87x = 6,645.94 × 2,720.00
  4. Step 4: Simplify right side
    4,815.87x = 18,076,916.77
  5. Step 5: Solve for x
    x = 18,076,916.77/4,815.87
  6. Step 6: Final answer
    x = 3,753.61

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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.