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Finding the Fourth Proportional to 6,805, 10,202.10 and 3,518.56

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Solution

The fourth proportional to 6,805, 10,202.10 and 3,518.56 is: 5,275.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,805 : 10,202.10 = 3,518.56 : x
  2. Step 2: Convert to fraction form
    6,805/10,202.10 = 3,518.56/x
  3. Step 3: Cross multiply
    6,805x = 10,202.10 × 3,518.56
  4. Step 4: Simplify right side
    6,805x = 35,896,700.98
  5. Step 5: Solve for x
    x = 35,896,700.98/6,805
  6. Step 6: Final answer
    x = 5,275.05

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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.