Home / 6,905.55-9,529.33-3,920.99

Finding the Fourth Proportional to 6,905.55, 9,529.33 and 3,920.99

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Solution

The fourth proportional to 6,905.55, 9,529.33 and 3,920.99 is: 5,410.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.55 : 9,529.33 = 3,920.99 : x
  2. Step 2: Convert to fraction form
    6,905.55/9,529.33 = 3,920.99/x
  3. Step 3: Cross multiply
    6,905.55x = 9,529.33 × 3,920.99
  4. Step 4: Simplify right side
    6,905.55x = 37,364,388.03
  5. Step 5: Solve for x
    x = 37,364,388.03/6,905.55
  6. Step 6: Final answer
    x = 5,410.78

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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.