Home / 3,720.29-5,133.44-2,395.79

Finding the Fourth Proportional to 3,720.29, 5,133.44 and 2,395.79

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Solution

The fourth proportional to 3,720.29, 5,133.44 and 2,395.79 is: 3,305.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.29 : 5,133.44 = 2,395.79 : x
  2. Step 2: Convert to fraction form
    3,720.29/5,133.44 = 2,395.79/x
  3. Step 3: Cross multiply
    3,720.29x = 5,133.44 × 2,395.79
  4. Step 4: Simplify right side
    3,720.29x = 12,298,644.22
  5. Step 5: Solve for x
    x = 12,298,644.22/3,720.29
  6. Step 6: Final answer
    x = 3,305.83

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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.