Home / 2,676.40-4,014.60-1,380.40

Finding the Fourth Proportional to 2,676.40, 4,014.60 and 1,380.40

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Solution

The fourth proportional to 2,676.40, 4,014.60 and 1,380.40 is: 2,070.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,676.40 : 4,014.60 = 1,380.40 : x
  2. Step 2: Convert to fraction form
    2,676.40/4,014.60 = 1,380.40/x
  3. Step 3: Cross multiply
    2,676.40x = 4,014.60 × 1,380.40
  4. Step 4: Simplify right side
    2,676.40x = 5,541,753.84
  5. Step 5: Solve for x
    x = 5,541,753.84/2,676.40
  6. Step 6: Final answer
    x = 2,070.60

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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.