Home / 7,621.78-11,429.02-3,236.84

Finding the Fourth Proportional to 7,621.78, 11,429.02 and 3,236.84

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Solution

The fourth proportional to 7,621.78, 11,429.02 and 3,236.84 is: 4,853.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.78 : 11,429.02 = 3,236.84 : x
  2. Step 2: Convert to fraction form
    7,621.78/11,429.02 = 3,236.84/x
  3. Step 3: Cross multiply
    7,621.78x = 11,429.02 × 3,236.84
  4. Step 4: Simplify right side
    7,621.78x = 36,993,929.58
  5. Step 5: Solve for x
    x = 36,993,929.58/7,621.78
  6. Step 6: Final answer
    x = 4,853.71

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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.