Home / 6,929.70-9,561.88-3,945.59

Finding the Fourth Proportional to 6,929.70, 9,561.88 and 3,945.59

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Solution

The fourth proportional to 6,929.70, 9,561.88 and 3,945.59 is: 5,444.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,929.70 : 9,561.88 = 3,945.59 : x
  2. Step 2: Convert to fraction form
    6,929.70/9,561.88 = 3,945.59/x
  3. Step 3: Cross multiply
    6,929.70x = 9,561.88 × 3,945.59
  4. Step 4: Simplify right side
    6,929.70x = 37,727,251.09
  5. Step 5: Solve for x
    x = 37,727,251.09/6,929.70
  6. Step 6: Final answer
    x = 5,444.29

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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.