Home / 1,441.30-2,161.17-453.93

Finding the Fourth Proportional to 1,441.30, 2,161.17 and 453.93

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Solution

The fourth proportional to 1,441.30, 2,161.17 and 453.93 is: 680.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441.30 : 2,161.17 = 453.93 : x
  2. Step 2: Convert to fraction form
    1,441.30/2,161.17 = 453.93/x
  3. Step 3: Cross multiply
    1,441.30x = 2,161.17 × 453.93
  4. Step 4: Simplify right side
    1,441.30x = 981,006.82
  5. Step 5: Solve for x
    x = 981,006.82/1,441.30
  6. Step 6: Final answer
    x = 680.64

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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.