Home / 2,764.60-4,140.42-2,143.36

Finding the Fourth Proportional to 2,764.60, 4,140.42 and 2,143.36

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Solution

The fourth proportional to 2,764.60, 4,140.42 and 2,143.36 is: 3,210.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.60 : 4,140.42 = 2,143.36 : x
  2. Step 2: Convert to fraction form
    2,764.60/4,140.42 = 2,143.36/x
  3. Step 3: Cross multiply
    2,764.60x = 4,140.42 × 2,143.36
  4. Step 4: Simplify right side
    2,764.60x = 8,874,410.61
  5. Step 5: Solve for x
    x = 8,874,410.61/2,764.60
  6. Step 6: Final answer
    x = 3,210.02

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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.