Home / 2,905.96-4,004.50-2,869.64

Finding the Fourth Proportional to 2,905.96, 4,004.50 and 2,869.64

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Solution

The fourth proportional to 2,905.96, 4,004.50 and 2,869.64 is: 3,954.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.96 : 4,004.50 = 2,869.64 : x
  2. Step 2: Convert to fraction form
    2,905.96/4,004.50 = 2,869.64/x
  3. Step 3: Cross multiply
    2,905.96x = 4,004.50 × 2,869.64
  4. Step 4: Simplify right side
    2,905.96x = 11,491,473.38
  5. Step 5: Solve for x
    x = 11,491,473.38/2,905.96
  6. Step 6: Final answer
    x = 3,954.45

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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.