Home / 2,170.89-2,995.71-1,226.88

Finding the Fourth Proportional to 2,170.89, 2,995.71 and 1,226.88

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Solution

The fourth proportional to 2,170.89, 2,995.71 and 1,226.88 is: 1,693.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.89 : 2,995.71 = 1,226.88 : x
  2. Step 2: Convert to fraction form
    2,170.89/2,995.71 = 1,226.88/x
  3. Step 3: Cross multiply
    2,170.89x = 2,995.71 × 1,226.88
  4. Step 4: Simplify right side
    2,170.89x = 3,675,376.68
  5. Step 5: Solve for x
    x = 3,675,376.68/2,170.89
  6. Step 6: Final answer
    x = 1,693.03

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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.