Home / 3,955.28-5,458.39-2,162.83

Finding the Fourth Proportional to 3,955.28, 5,458.39 and 2,162.83

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Solution

The fourth proportional to 3,955.28, 5,458.39 and 2,162.83 is: 2,984.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.28 : 5,458.39 = 2,162.83 : x
  2. Step 2: Convert to fraction form
    3,955.28/5,458.39 = 2,162.83/x
  3. Step 3: Cross multiply
    3,955.28x = 5,458.39 × 2,162.83
  4. Step 4: Simplify right side
    3,955.28x = 11,805,569.64
  5. Step 5: Solve for x
    x = 11,805,569.64/3,955.28
  6. Step 6: Final answer
    x = 2,984.76

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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.