Home / 1,422.99-2,135.29-1,136.25

Finding the Fourth Proportional to 1,422.99, 2,135.29 and 1,136.25

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Solution

The fourth proportional to 1,422.99, 2,135.29 and 1,136.25 is: 1,705.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422.99 : 2,135.29 = 1,136.25 : x
  2. Step 2: Convert to fraction form
    1,422.99/2,135.29 = 1,136.25/x
  3. Step 3: Cross multiply
    1,422.99x = 2,135.29 × 1,136.25
  4. Step 4: Simplify right side
    1,422.99x = 2,426,209.75
  5. Step 5: Solve for x
    x = 2,426,209.75/1,422.99
  6. Step 6: Final answer
    x = 1,705.01

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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.