Home / 3,720.07-5,133.18-2,227.69

Finding the Fourth Proportional to 3,720.07, 5,133.18 and 2,227.69

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Solution

The fourth proportional to 3,720.07, 5,133.18 and 2,227.69 is: 3,073.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.07 : 5,133.18 = 2,227.69 : x
  2. Step 2: Convert to fraction form
    3,720.07/5,133.18 = 2,227.69/x
  3. Step 3: Cross multiply
    3,720.07x = 5,133.18 × 2,227.69
  4. Step 4: Simplify right side
    3,720.07x = 11,435,133.75
  5. Step 5: Solve for x
    x = 11,435,133.75/3,720.07
  6. Step 6: Final answer
    x = 3,073.90

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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.