Home / 3,723.64-5,590.68-2,991.40

Finding the Fourth Proportional to 3,723.64, 5,590.68 and 2,991.40

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Solution

The fourth proportional to 3,723.64, 5,590.68 and 2,991.40 is: 4,491.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.64 : 5,590.68 = 2,991.40 : x
  2. Step 2: Convert to fraction form
    3,723.64/5,590.68 = 2,991.40/x
  3. Step 3: Cross multiply
    3,723.64x = 5,590.68 × 2,991.40
  4. Step 4: Simplify right side
    3,723.64x = 16,723,960.15
  5. Step 5: Solve for x
    x = 16,723,960.15/3,723.64
  6. Step 6: Final answer
    x = 4,491.29

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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.