Home / 2,829.60-4,236.03-2,102.40

Finding the Fourth Proportional to 2,829.60, 4,236.03 and 2,102.40

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Solution

The fourth proportional to 2,829.60, 4,236.03 and 2,102.40 is: 3,147.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.60 : 4,236.03 = 2,102.40 : x
  2. Step 2: Convert to fraction form
    2,829.60/4,236.03 = 2,102.40/x
  3. Step 3: Cross multiply
    2,829.60x = 4,236.03 × 2,102.40
  4. Step 4: Simplify right side
    2,829.60x = 8,905,829.47
  5. Step 5: Solve for x
    x = 8,905,829.47/2,829.60
  6. Step 6: Final answer
    x = 3,147.38

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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.