Home / 1,426.49-2,136.96-808.33

Finding the Fourth Proportional to 1,426.49, 2,136.96 and 808.33

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Solution

The fourth proportional to 1,426.49, 2,136.96 and 808.33 is: 1,210.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.49 : 2,136.96 = 808.33 : x
  2. Step 2: Convert to fraction form
    1,426.49/2,136.96 = 808.33/x
  3. Step 3: Cross multiply
    1,426.49x = 2,136.96 × 808.33
  4. Step 4: Simplify right side
    1,426.49x = 1,727,368.88
  5. Step 5: Solve for x
    x = 1,727,368.88/1,426.49
  6. Step 6: Final answer
    x = 1,210.92

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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.