Home / 2,213.82-3,320.90-896.95

Finding the Fourth Proportional to 2,213.82, 3,320.90 and 896.95

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Solution

The fourth proportional to 2,213.82, 3,320.90 and 896.95 is: 1,345.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.82 : 3,320.90 = 896.95 : x
  2. Step 2: Convert to fraction form
    2,213.82/3,320.90 = 896.95/x
  3. Step 3: Cross multiply
    2,213.82x = 3,320.90 × 896.95
  4. Step 4: Simplify right side
    2,213.82x = 2,978,681.26
  5. Step 5: Solve for x
    x = 2,978,681.26/2,213.82
  6. Step 6: Final answer
    x = 1,345.49

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Double scale
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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.