Home / 1,226.26-1,837.85-1,127.85

Finding the Fourth Proportional to 1,226.26, 1,837.85 and 1,127.85

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Solution

The fourth proportional to 1,226.26, 1,837.85 and 1,127.85 is: 1,690.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226.26 : 1,837.85 = 1,127.85 : x
  2. Step 2: Convert to fraction form
    1,226.26/1,837.85 = 1,127.85/x
  3. Step 3: Cross multiply
    1,226.26x = 1,837.85 × 1,127.85
  4. Step 4: Simplify right side
    1,226.26x = 2,072,806.59
  5. Step 5: Solve for x
    x = 2,072,806.59/1,226.26
  6. Step 6: Final answer
    x = 1,690.35

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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.