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Finding the Fourth Proportional to 2,628.03, 3,942.05 and 896.67

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Solution

The fourth proportional to 2,628.03, 3,942.05 and 896.67 is: 1,345.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.03 : 3,942.05 = 896.67 : x
  2. Step 2: Convert to fraction form
    2,628.03/3,942.05 = 896.67/x
  3. Step 3: Cross multiply
    2,628.03x = 3,942.05 × 896.67
  4. Step 4: Simplify right side
    2,628.03x = 3,534,713.49
  5. Step 5: Solve for x
    x = 3,534,713.49/2,628.03
  6. Step 6: Final answer
    x = 1,345.01

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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.