Home / 6,820.20-9,411.18-3,835.56

Finding the Fourth Proportional to 6,820.20, 9,411.18 and 3,835.56

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Solution

The fourth proportional to 6,820.20, 9,411.18 and 3,835.56 is: 5,292.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820.20 : 9,411.18 = 3,835.56 : x
  2. Step 2: Convert to fraction form
    6,820.20/9,411.18 = 3,835.56/x
  3. Step 3: Cross multiply
    6,820.20x = 9,411.18 × 3,835.56
  4. Step 4: Simplify right side
    6,820.20x = 36,097,145.56
  5. Step 5: Solve for x
    x = 36,097,145.56/6,820.20
  6. Step 6: Final answer
    x = 5,292.68

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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.