Home / 6,821.90-9,414.01-4,134.71

Finding the Fourth Proportional to 6,821.90, 9,414.01 and 4,134.71

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Solution

The fourth proportional to 6,821.90, 9,414.01 and 4,134.71 is: 5,705.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.90 : 9,414.01 = 4,134.71 : x
  2. Step 2: Convert to fraction form
    6,821.90/9,414.01 = 4,134.71/x
  3. Step 3: Cross multiply
    6,821.90x = 9,414.01 × 4,134.71
  4. Step 4: Simplify right side
    6,821.90x = 38,924,143.88
  5. Step 5: Solve for x
    x = 38,924,143.88/6,821.90
  6. Step 6: Final answer
    x = 5,705.77

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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.