Home / 3,614.32-5,405.85-2,130.02

Finding the Fourth Proportional to 3,614.32, 5,405.85 and 2,130.02

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Solution

The fourth proportional to 3,614.32, 5,405.85 and 2,130.02 is: 3,185.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.32 : 5,405.85 = 2,130.02 : x
  2. Step 2: Convert to fraction form
    3,614.32/5,405.85 = 2,130.02/x
  3. Step 3: Cross multiply
    3,614.32x = 5,405.85 × 2,130.02
  4. Step 4: Simplify right side
    3,614.32x = 11,514,568.62
  5. Step 5: Solve for x
    x = 11,514,568.62/3,614.32
  6. Step 6: Final answer
    x = 3,185.82

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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.