Home / 6,891.51-10,337.60-1,961.49

Finding the Fourth Proportional to 6,891.51, 10,337.60 and 1,961.49

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Solution

The fourth proportional to 6,891.51, 10,337.60 and 1,961.49 is: 2,942.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.51 : 10,337.60 = 1,961.49 : x
  2. Step 2: Convert to fraction form
    6,891.51/10,337.60 = 1,961.49/x
  3. Step 3: Cross multiply
    6,891.51x = 10,337.60 × 1,961.49
  4. Step 4: Simplify right side
    6,891.51x = 20,277,108.10
  5. Step 5: Solve for x
    x = 20,277,108.10/6,891.51
  6. Step 6: Final answer
    x = 2,942.33

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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.