Home / 2,141.94-2,957.04-1,257.74

Finding the Fourth Proportional to 2,141.94, 2,957.04 and 1,257.74

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Solution

The fourth proportional to 2,141.94, 2,957.04 and 1,257.74 is: 1,736.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141.94 : 2,957.04 = 1,257.74 : x
  2. Step 2: Convert to fraction form
    2,141.94/2,957.04 = 1,257.74/x
  3. Step 3: Cross multiply
    2,141.94x = 2,957.04 × 1,257.74
  4. Step 4: Simplify right side
    2,141.94x = 3,719,187.49
  5. Step 5: Solve for x
    x = 3,719,187.49/2,141.94
  6. Step 6: Final answer
    x = 1,736.36

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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.