Home / 3,245.84-4,870.38-1,299.42

Finding the Fourth Proportional to 3,245.84, 4,870.38 and 1,299.42

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Solution

The fourth proportional to 3,245.84, 4,870.38 and 1,299.42 is: 1,949.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245.84 : 4,870.38 = 1,299.42 : x
  2. Step 2: Convert to fraction form
    3,245.84/4,870.38 = 1,299.42/x
  3. Step 3: Cross multiply
    3,245.84x = 4,870.38 × 1,299.42
  4. Step 4: Simplify right side
    3,245.84x = 6,328,669.18
  5. Step 5: Solve for x
    x = 6,328,669.18/3,245.84
  6. Step 6: Final answer
    x = 1,949.78

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Double scale
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Similar ratio
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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.