Home / 3,716.18-5,128.85-2,300.32

Finding the Fourth Proportional to 3,716.18, 5,128.85 and 2,300.32

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Solution

The fourth proportional to 3,716.18, 5,128.85 and 2,300.32 is: 3,174.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.18 : 5,128.85 = 2,300.32 : x
  2. Step 2: Convert to fraction form
    3,716.18/5,128.85 = 2,300.32/x
  3. Step 3: Cross multiply
    3,716.18x = 5,128.85 × 2,300.32
  4. Step 4: Simplify right side
    3,716.18x = 11,797,959.09
  5. Step 5: Solve for x
    x = 11,797,959.09/3,716.18
  6. Step 6: Final answer
    x = 3,174.76

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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.