Home / 6,887.57-10,331.73-1,956.80

Finding the Fourth Proportional to 6,887.57, 10,331.73 and 1,956.80

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Solution

The fourth proportional to 6,887.57, 10,331.73 and 1,956.80 is: 2,935.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887.57 : 10,331.73 = 1,956.80 : x
  2. Step 2: Convert to fraction form
    6,887.57/10,331.73 = 1,956.80/x
  3. Step 3: Cross multiply
    6,887.57x = 10,331.73 × 1,956.80
  4. Step 4: Simplify right side
    6,887.57x = 20,217,155.09
  5. Step 5: Solve for x
    x = 20,217,155.09/6,887.57
  6. Step 6: Final answer
    x = 2,935.31

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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.