Home / 2,141.97-2,955.06-1,257.45

Finding the Fourth Proportional to 2,141.97, 2,955.06 and 1,257.45

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Solution

The fourth proportional to 2,141.97, 2,955.06 and 1,257.45 is: 1,734.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141.97 : 2,955.06 = 1,257.45 : x
  2. Step 2: Convert to fraction form
    2,141.97/2,955.06 = 1,257.45/x
  3. Step 3: Cross multiply
    2,141.97x = 2,955.06 × 1,257.45
  4. Step 4: Simplify right side
    2,141.97x = 3,715,840.20
  5. Step 5: Solve for x
    x = 3,715,840.20/2,141.97
  6. Step 6: Final answer
    x = 1,734.78

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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.