Home / 6,722.24-9,276.54-3,889.40

Finding the Fourth Proportional to 6,722.24, 9,276.54 and 3,889.40

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Solution

The fourth proportional to 6,722.24, 9,276.54 and 3,889.40 is: 5,367.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,722.24 : 9,276.54 = 3,889.40 : x
  2. Step 2: Convert to fraction form
    6,722.24/9,276.54 = 3,889.40/x
  3. Step 3: Cross multiply
    6,722.24x = 9,276.54 × 3,889.40
  4. Step 4: Simplify right side
    6,722.24x = 36,080,174.68
  5. Step 5: Solve for x
    x = 36,080,174.68/6,722.24
  6. Step 6: Final answer
    x = 5,367.28

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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.