Home / 6,905.88-10,342.32-3,781.20

Finding the Fourth Proportional to 6,905.88, 10,342.32 and 3,781.20

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Solution

The fourth proportional to 6,905.88, 10,342.32 and 3,781.20 is: 5,662.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.88 : 10,342.32 = 3,781.20 : x
  2. Step 2: Convert to fraction form
    6,905.88/10,342.32 = 3,781.20/x
  3. Step 3: Cross multiply
    6,905.88x = 10,342.32 × 3,781.20
  4. Step 4: Simplify right side
    6,905.88x = 39,106,380.38
  5. Step 5: Solve for x
    x = 39,106,380.38/6,905.88
  6. Step 6: Final answer
    x = 5,662.77

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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.