Home / 3,102.64-4,279.93-2,040.60

Finding the Fourth Proportional to 3,102.64, 4,279.93 and 2,040.60

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Solution

The fourth proportional to 3,102.64, 4,279.93 and 2,040.60 is: 2,814.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.64 : 4,279.93 = 2,040.60 : x
  2. Step 2: Convert to fraction form
    3,102.64/4,279.93 = 2,040.60/x
  3. Step 3: Cross multiply
    3,102.64x = 4,279.93 × 2,040.60
  4. Step 4: Simplify right side
    3,102.64x = 8,733,625.16
  5. Step 5: Solve for x
    x = 8,733,625.16/3,102.64
  6. Step 6: Final answer
    x = 2,814.90

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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.