Home / 3,784.38-5,676.12-1,319.00

Finding the Fourth Proportional to 3,784.38, 5,676.12 and 1,319.00

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Solution

The fourth proportional to 3,784.38, 5,676.12 and 1,319.00 is: 1,978.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.38 : 5,676.12 = 1,319.00 : x
  2. Step 2: Convert to fraction form
    3,784.38/5,676.12 = 1,319.00/x
  3. Step 3: Cross multiply
    3,784.38x = 5,676.12 × 1,319.00
  4. Step 4: Simplify right side
    3,784.38x = 7,486,773.90
  5. Step 5: Solve for x
    x = 7,486,773.90/3,784.38
  6. Step 6: Final answer
    x = 1,978.34

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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.