Home / 6,821.94-9,411.37-3,909.96

Finding the Fourth Proportional to 6,821.94, 9,411.37 and 3,909.96

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Solution

The fourth proportional to 6,821.94, 9,411.37 and 3,909.96 is: 5,394.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.94 : 9,411.37 = 3,909.96 : x
  2. Step 2: Convert to fraction form
    6,821.94/9,411.37 = 3,909.96/x
  3. Step 3: Cross multiply
    6,821.94x = 9,411.37 × 3,909.96
  4. Step 4: Simplify right side
    6,821.94x = 36,798,092.46
  5. Step 5: Solve for x
    x = 36,798,092.46/6,821.94
  6. Step 6: Final answer
    x = 5,394.08

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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.