Home / 3,955.42-5,458.45-2,276.80

Finding the Fourth Proportional to 3,955.42, 5,458.45 and 2,276.80

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Solution

The fourth proportional to 3,955.42, 5,458.45 and 2,276.80 is: 3,141.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.42 : 5,458.45 = 2,276.80 : x
  2. Step 2: Convert to fraction form
    3,955.42/5,458.45 = 2,276.80/x
  3. Step 3: Cross multiply
    3,955.42x = 5,458.45 × 2,276.80
  4. Step 4: Simplify right side
    3,955.42x = 12,427,798.96
  5. Step 5: Solve for x
    x = 12,427,798.96/3,955.42
  6. Step 6: Final answer
    x = 3,141.97

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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.