Home / 3,846.28-5,307.96-2,167.76

Finding the Fourth Proportional to 3,846.28, 5,307.96 and 2,167.76

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Solution

The fourth proportional to 3,846.28, 5,307.96 and 2,167.76 is: 2,991.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846.28 : 5,307.96 = 2,167.76 : x
  2. Step 2: Convert to fraction form
    3,846.28/5,307.96 = 2,167.76/x
  3. Step 3: Cross multiply
    3,846.28x = 5,307.96 × 2,167.76
  4. Step 4: Simplify right side
    3,846.28x = 11,506,383.37
  5. Step 5: Solve for x
    x = 11,506,383.37/3,846.28
  6. Step 6: Final answer
    x = 2,991.56

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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.