Home / 2,963.28-4,090.07-2,167.76

Finding the Fourth Proportional to 2,963.28, 4,090.07 and 2,167.76

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Solution

The fourth proportional to 2,963.28, 4,090.07 and 2,167.76 is: 2,992.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,963.28 : 4,090.07 = 2,167.76 : x
  2. Step 2: Convert to fraction form
    2,963.28/4,090.07 = 2,167.76/x
  3. Step 3: Cross multiply
    2,963.28x = 4,090.07 × 2,167.76
  4. Step 4: Simplify right side
    2,963.28x = 8,866,299.69
  5. Step 5: Solve for x
    x = 8,866,299.69/2,963.28
  6. Step 6: Final answer
    x = 2,992.05

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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.