Home / 6,905.19-9,529.19-3,921.09

Finding the Fourth Proportional to 6,905.19, 9,529.19 and 3,921.09

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Solution

The fourth proportional to 6,905.19, 9,529.19 and 3,921.09 is: 5,411.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.19 : 9,529.19 = 3,921.09 : x
  2. Step 2: Convert to fraction form
    6,905.19/9,529.19 = 3,921.09/x
  3. Step 3: Cross multiply
    6,905.19x = 9,529.19 × 3,921.09
  4. Step 4: Simplify right side
    6,905.19x = 37,364,811.62
  5. Step 5: Solve for x
    x = 37,364,811.62/6,905.19
  6. Step 6: Final answer
    x = 5,411.12

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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.