Home / 4,387.80-6,579.72-1,613.64

Finding the Fourth Proportional to 4,387.80, 6,579.72 and 1,613.64

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Solution

The fourth proportional to 4,387.80, 6,579.72 and 1,613.64 is: 2,419.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,387.80 : 6,579.72 = 1,613.64 : x
  2. Step 2: Convert to fraction form
    4,387.80/6,579.72 = 1,613.64/x
  3. Step 3: Cross multiply
    4,387.80x = 6,579.72 × 1,613.64
  4. Step 4: Simplify right side
    4,387.80x = 10,617,299.38
  5. Step 5: Solve for x
    x = 10,617,299.38/4,387.80
  6. Step 6: Final answer
    x = 2,419.73

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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.