Home / 1,424.39-2,136.58-450.57

Finding the Fourth Proportional to 1,424.39, 2,136.58 and 450.57

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Solution

The fourth proportional to 1,424.39, 2,136.58 and 450.57 is: 675.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.39 : 2,136.58 = 450.57 : x
  2. Step 2: Convert to fraction form
    1,424.39/2,136.58 = 450.57/x
  3. Step 3: Cross multiply
    1,424.39x = 2,136.58 × 450.57
  4. Step 4: Simplify right side
    1,424.39x = 962,677.72
  5. Step 5: Solve for x
    x = 962,677.72/1,424.39
  6. Step 6: Final answer
    x = 675.86

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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.