Home / 6,818.20-10,221.90-3,740.20

Finding the Fourth Proportional to 6,818.20, 10,221.90 and 3,740.20

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Solution

The fourth proportional to 6,818.20, 10,221.90 and 3,740.20 is: 5,607.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,818.20 : 10,221.90 = 3,740.20 : x
  2. Step 2: Convert to fraction form
    6,818.20/10,221.90 = 3,740.20/x
  3. Step 3: Cross multiply
    6,818.20x = 10,221.90 × 3,740.20
  4. Step 4: Simplify right side
    6,818.20x = 38,231,950.38
  5. Step 5: Solve for x
    x = 38,231,950.38/6,818.20
  6. Step 6: Final answer
    x = 5,607.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.