Home / 6,819.89-9,411.35-3,835.72

Finding the Fourth Proportional to 6,819.89, 9,411.35 and 3,835.72

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Solution

The fourth proportional to 6,819.89, 9,411.35 and 3,835.72 is: 5,293.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,819.89 : 9,411.35 = 3,835.72 : x
  2. Step 2: Convert to fraction form
    6,819.89/9,411.35 = 3,835.72/x
  3. Step 3: Cross multiply
    6,819.89x = 9,411.35 × 3,835.72
  4. Step 4: Simplify right side
    6,819.89x = 36,099,260.72
  5. Step 5: Solve for x
    x = 36,099,260.72/6,819.89
  6. Step 6: Final answer
    x = 5,293.24

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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.