Home / 1,426.45-2,136.03-1,263.64

Finding the Fourth Proportional to 1,426.45, 2,136.03 and 1,263.64

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Solution

The fourth proportional to 1,426.45, 2,136.03 and 1,263.64 is: 1,892.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.45 : 2,136.03 = 1,263.64 : x
  2. Step 2: Convert to fraction form
    1,426.45/2,136.03 = 1,263.64/x
  3. Step 3: Cross multiply
    1,426.45x = 2,136.03 × 1,263.64
  4. Step 4: Simplify right side
    1,426.45x = 2,699,172.95
  5. Step 5: Solve for x
    x = 2,699,172.95/1,426.45
  6. Step 6: Final answer
    x = 1,892.23

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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.