Home / 3,720.75-5,134.64-2,064.75

Finding the Fourth Proportional to 3,720.75, 5,134.64 and 2,064.75

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Solution

The fourth proportional to 3,720.75, 5,134.64 and 2,064.75 is: 2,849.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.75 : 5,134.64 = 2,064.75 : x
  2. Step 2: Convert to fraction form
    3,720.75/5,134.64 = 2,064.75/x
  3. Step 3: Cross multiply
    3,720.75x = 5,134.64 × 2,064.75
  4. Step 4: Simplify right side
    3,720.75x = 10,601,737.62
  5. Step 5: Solve for x
    x = 10,601,737.62/3,720.75
  6. Step 6: Final answer
    x = 2,849.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.