Home / 6,929.39-9,561.46-3,945.28

Finding the Fourth Proportional to 6,929.39, 9,561.46 and 3,945.28

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Solution

The fourth proportional to 6,929.39, 9,561.46 and 3,945.28 is: 5,443.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,929.39 : 9,561.46 = 3,945.28 : x
  2. Step 2: Convert to fraction form
    6,929.39/9,561.46 = 3,945.28/x
  3. Step 3: Cross multiply
    6,929.39x = 9,561.46 × 3,945.28
  4. Step 4: Simplify right side
    6,929.39x = 37,722,617.18
  5. Step 5: Solve for x
    x = 37,722,617.18/6,929.39
  6. Step 6: Final answer
    x = 5,443.86

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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.