Home / 6,905.42-9,529.77-3,761.78

Finding the Fourth Proportional to 6,905.42, 9,529.77 and 3,761.78

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Solution

The fourth proportional to 6,905.42, 9,529.77 and 3,761.78 is: 5,191.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.42 : 9,529.77 = 3,761.78 : x
  2. Step 2: Convert to fraction form
    6,905.42/9,529.77 = 3,761.78/x
  3. Step 3: Cross multiply
    6,905.42x = 9,529.77 × 3,761.78
  4. Step 4: Simplify right side
    6,905.42x = 35,848,898.19
  5. Step 5: Solve for x
    x = 35,848,898.19/6,905.42
  6. Step 6: Final answer
    x = 5,191.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.