Home / 6,898.20-10,358.10-3,982.20

Finding the Fourth Proportional to 6,898.20, 10,358.10 and 3,982.20

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Solution

The fourth proportional to 6,898.20, 10,358.10 and 3,982.20 is: 5,979.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,898.20 : 10,358.10 = 3,982.20 : x
  2. Step 2: Convert to fraction form
    6,898.20/10,358.10 = 3,982.20/x
  3. Step 3: Cross multiply
    6,898.20x = 10,358.10 × 3,982.20
  4. Step 4: Simplify right side
    6,898.20x = 41,248,025.82
  5. Step 5: Solve for x
    x = 41,248,025.82/6,898.20
  6. Step 6: Final answer
    x = 5,979.53

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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.