Home / 3,085.71-4,257.20-2,141.25

Finding the Fourth Proportional to 3,085.71, 4,257.20 and 2,141.25

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Solution

The fourth proportional to 3,085.71, 4,257.20 and 2,141.25 is: 2,954.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.71 : 4,257.20 = 2,141.25 : x
  2. Step 2: Convert to fraction form
    3,085.71/4,257.20 = 2,141.25/x
  3. Step 3: Cross multiply
    3,085.71x = 4,257.20 × 2,141.25
  4. Step 4: Simplify right side
    3,085.71x = 9,115,718.79
  5. Step 5: Solve for x
    x = 9,115,718.79/3,085.71
  6. Step 6: Final answer
    x = 2,954.17

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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.