Home / 1,227.07-1,837.90-1,131.04

Finding the Fourth Proportional to 1,227.07, 1,837.90 and 1,131.04

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Solution

The fourth proportional to 1,227.07, 1,837.90 and 1,131.04 is: 1,694.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227.07 : 1,837.90 = 1,131.04 : x
  2. Step 2: Convert to fraction form
    1,227.07/1,837.90 = 1,131.04/x
  3. Step 3: Cross multiply
    1,227.07x = 1,837.90 × 1,131.04
  4. Step 4: Simplify right side
    1,227.07x = 2,078,741.24
  5. Step 5: Solve for x
    x = 2,078,741.24/1,227.07
  6. Step 6: Final answer
    x = 1,694.08

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1.5x scale

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.