Home / 6,905.64-9,529.33-4,072.88

Finding the Fourth Proportional to 6,905.64, 9,529.33 and 4,072.88

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Solution

The fourth proportional to 6,905.64, 9,529.33 and 4,072.88 is: 5,620.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.64 : 9,529.33 = 4,072.88 : x
  2. Step 2: Convert to fraction form
    6,905.64/9,529.33 = 4,072.88/x
  3. Step 3: Cross multiply
    6,905.64x = 9,529.33 × 4,072.88
  4. Step 4: Simplify right side
    6,905.64x = 38,811,817.57
  5. Step 5: Solve for x
    x = 38,811,817.57/6,905.64
  6. Step 6: Final answer
    x = 5,620.31

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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.