Home / 3,784.14-5,676.81-1,319.04

Finding the Fourth Proportional to 3,784.14, 5,676.81 and 1,319.04

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Solution

The fourth proportional to 3,784.14, 5,676.81 and 1,319.04 is: 1,978.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.14 : 5,676.81 = 1,319.04 : x
  2. Step 2: Convert to fraction form
    3,784.14/5,676.81 = 1,319.04/x
  3. Step 3: Cross multiply
    3,784.14x = 5,676.81 × 1,319.04
  4. Step 4: Simplify right side
    3,784.14x = 7,487,939.46
  5. Step 5: Solve for x
    x = 7,487,939.46/3,784.14
  6. Step 6: Final answer
    x = 1,978.77

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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.