Home / 2,628.50-3,942.75-2,468.12

Finding the Fourth Proportional to 2,628.50, 3,942.75 and 2,468.12

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Solution

The fourth proportional to 2,628.50, 3,942.75 and 2,468.12 is: 3,702.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.50 : 3,942.75 = 2,468.12 : x
  2. Step 2: Convert to fraction form
    2,628.50/3,942.75 = 2,468.12/x
  3. Step 3: Cross multiply
    2,628.50x = 3,942.75 × 2,468.12
  4. Step 4: Simplify right side
    2,628.50x = 9,731,184.91
  5. Step 5: Solve for x
    x = 9,731,184.91/2,628.50
  6. Step 6: Final answer
    x = 3,702.18

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Half scale
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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.