Home / 2,722.60-4,083.90-2,571.40

Finding the Fourth Proportional to 2,722.60, 4,083.90 and 2,571.40

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Solution

The fourth proportional to 2,722.60, 4,083.90 and 2,571.40 is: 3,857.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.60 : 4,083.90 = 2,571.40 : x
  2. Step 2: Convert to fraction form
    2,722.60/4,083.90 = 2,571.40/x
  3. Step 3: Cross multiply
    2,722.60x = 4,083.90 × 2,571.40
  4. Step 4: Simplify right side
    2,722.60x = 10,501,340.46
  5. Step 5: Solve for x
    x = 10,501,340.46/2,722.60
  6. Step 6: Final answer
    x = 3,857.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.