Home / 1,767.93-2,439.99-1,272.21

Finding the Fourth Proportional to 1,767.93, 2,439.99 and 1,272.21

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Solution

The fourth proportional to 1,767.93, 2,439.99 and 1,272.21 is: 1,755.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767.93 : 2,439.99 = 1,272.21 : x
  2. Step 2: Convert to fraction form
    1,767.93/2,439.99 = 1,272.21/x
  3. Step 3: Cross multiply
    1,767.93x = 2,439.99 × 1,272.21
  4. Step 4: Simplify right side
    1,767.93x = 3,104,179.68
  5. Step 5: Solve for x
    x = 3,104,179.68/1,767.93
  6. Step 6: Final answer
    x = 1,755.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.