Home / 3,345.20-4,620.78-2,568.84

Finding the Fourth Proportional to 3,345.20, 4,620.78 and 2,568.84

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Solution

The fourth proportional to 3,345.20, 4,620.78 and 2,568.84 is: 3,548.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.20 : 4,620.78 = 2,568.84 : x
  2. Step 2: Convert to fraction form
    3,345.20/4,620.78 = 2,568.84/x
  3. Step 3: Cross multiply
    3,345.20x = 4,620.78 × 2,568.84
  4. Step 4: Simplify right side
    3,345.20x = 11,870,044.50
  5. Step 5: Solve for x
    x = 11,870,044.50/3,345.20
  6. Step 6: Final answer
    x = 3,548.38

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.