Home / 6,887.86-10,331.78-1,956.85

Finding the Fourth Proportional to 6,887.86, 10,331.78 and 1,956.85

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Solution

The fourth proportional to 6,887.86, 10,331.78 and 1,956.85 is: 2,935.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887.86 : 10,331.78 = 1,956.85 : x
  2. Step 2: Convert to fraction form
    6,887.86/10,331.78 = 1,956.85/x
  3. Step 3: Cross multiply
    6,887.86x = 10,331.78 × 1,956.85
  4. Step 4: Simplify right side
    6,887.86x = 20,217,743.69
  5. Step 5: Solve for x
    x = 20,217,743.69/6,887.86
  6. Step 6: Final answer
    x = 2,935.27

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1.5x scale

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.