Home / 3,579.85-5,366.35-1,387.83

Finding the Fourth Proportional to 3,579.85, 5,366.35 and 1,387.83

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Solution

The fourth proportional to 3,579.85, 5,366.35 and 1,387.83 is: 2,080.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.85 : 5,366.35 = 1,387.83 : x
  2. Step 2: Convert to fraction form
    3,579.85/5,366.35 = 1,387.83/x
  3. Step 3: Cross multiply
    3,579.85x = 5,366.35 × 1,387.83
  4. Step 4: Simplify right side
    3,579.85x = 7,447,603.38
  5. Step 5: Solve for x
    x = 7,447,603.38/3,579.85
  6. Step 6: Final answer
    x = 2,080.43

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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.