Home / 7,958.16-11,939.40-2,411.28

Finding the Fourth Proportional to 7,958.16, 11,939.40 and 2,411.28

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Solution

The fourth proportional to 7,958.16, 11,939.40 and 2,411.28 is: 3,617.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,958.16 : 11,939.40 = 2,411.28 : x
  2. Step 2: Convert to fraction form
    7,958.16/11,939.40 = 2,411.28/x
  3. Step 3: Cross multiply
    7,958.16x = 11,939.40 × 2,411.28
  4. Step 4: Simplify right side
    7,958.16x = 28,789,236.43
  5. Step 5: Solve for x
    x = 28,789,236.43/7,958.16
  6. Step 6: Final answer
    x = 3,617.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.