Home / 3,951.04-5,447.41-2,798.75

Finding the Fourth Proportional to 3,951.04, 5,447.41 and 2,798.75

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Solution

The fourth proportional to 3,951.04, 5,447.41 and 2,798.75 is: 3,858.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.04 : 5,447.41 = 2,798.75 : x
  2. Step 2: Convert to fraction form
    3,951.04/5,447.41 = 2,798.75/x
  3. Step 3: Cross multiply
    3,951.04x = 5,447.41 × 2,798.75
  4. Step 4: Simplify right side
    3,951.04x = 15,245,938.74
  5. Step 5: Solve for x
    x = 15,245,938.74/3,951.04
  6. Step 6: Final answer
    x = 3,858.72

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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.