Home / 2,213.63-3,320.62-896.76

Finding the Fourth Proportional to 2,213.63, 3,320.62 and 896.76

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Solution

The fourth proportional to 2,213.63, 3,320.62 and 896.76 is: 1,345.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.63 : 3,320.62 = 896.76 : x
  2. Step 2: Convert to fraction form
    2,213.63/3,320.62 = 896.76/x
  3. Step 3: Cross multiply
    2,213.63x = 3,320.62 × 896.76
  4. Step 4: Simplify right side
    2,213.63x = 2,977,799.19
  5. Step 5: Solve for x
    x = 2,977,799.19/2,213.63
  6. Step 6: Final answer
    x = 1,345.21

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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.