Home / 2,170.83-2,995.57-1,226.71

Finding the Fourth Proportional to 2,170.83, 2,995.57 and 1,226.71

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Solution

The fourth proportional to 2,170.83, 2,995.57 and 1,226.71 is: 1,692.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.83 : 2,995.57 = 1,226.71 : x
  2. Step 2: Convert to fraction form
    2,170.83/2,995.57 = 1,226.71/x
  3. Step 3: Cross multiply
    2,170.83x = 2,995.57 × 1,226.71
  4. Step 4: Simplify right side
    2,170.83x = 3,674,674.56
  5. Step 5: Solve for x
    x = 3,674,674.56/2,170.83
  6. Step 6: Final answer
    x = 1,692.75

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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.