Home / 1,292.55-1,936.23-1,226.13

Finding the Fourth Proportional to 1,292.55, 1,936.23 and 1,226.13

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Solution

The fourth proportional to 1,292.55, 1,936.23 and 1,226.13 is: 1,836.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292.55 : 1,936.23 = 1,226.13 : x
  2. Step 2: Convert to fraction form
    1,292.55/1,936.23 = 1,226.13/x
  3. Step 3: Cross multiply
    1,292.55x = 1,936.23 × 1,226.13
  4. Step 4: Simplify right side
    1,292.55x = 2,374,069.69
  5. Step 5: Solve for x
    x = 2,374,069.69/1,292.55
  6. Step 6: Final answer
    x = 1,836.73

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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.